A common cause of bacterial pneumonia is Streptococcus pneumoniae (pneumococcus). ARDS is a well-documented complication of a number of viral and mycoplasma infections, 159 and it is a likely explanation for the pattern of diffuse air space opacities in patients with viral pneumonia. 1. When a doctor listens to the lungs and finds breathing sounds are not clear on either side of the chest, a viral cause over bacterial is even more highly suspected. In children with solely viral pneumonia 49% had alveolar changes (p=0.001 compared with bacterial pneumonias, table 1). This condition occurs due to a group of diseases that together cause inflammation in the lungs. This type of … About 30% of pneumonia cases reported in the United States are viral.. Popovsky EY, Florin TA. In some people, it can be fatal, especially among the elderly and those with respiratory disorders. In the United States, common causes of viral pneumonia are influenza, respiratory syncytial virus (RSV), and SARS-CoV-2 (the virus that causes COVID-19). The radiograph still remains the reference standard for a medical diagnosis of pneumonia, and also helps to differentiate between bacterial and viral pneumonia. CAP is the most common type of pneumonia. Addressing vaccine use and providing education about common pneumonia symptoms can aid in early diagnosis of pneumonia and lower the rate of severe respiratory illness and prolonged hospitalization. The viral agents reach the lungs through inhalation via the mouth and nose. “Regular pneumonia is caused by bacteria or virus that inflames lungs, causes pus or phlegm in the lungs and the supply of oxygen is affected which causes shortness in breath. The symptoms of viral pneumonia develop gradually over a couple of days while bacterial pneumonia tends to develop rapid symptoms. It is mandatory to procure user consent prior to running these cookies on your website. When a productive cough is present, purulent or blood-stained sputum may indicate bacterial pneumonia ref. In pneumonia caused by bacteria and viruses like influenza, these agents can usually be controlled by antibiotics, or by the body’s immune system, within the first few days of the illness. The most common cause is called, fittingly enough, Streptococcus pneumoniae . Pneumonia can be caused by different types of infections such as bacterial, viral, fungal and even parasitic infections. Finally, the radiologists were not given clinical information during the evaluation, which could have further improved their performance. Bacterial pneumonia is generally caused by Streptococcus pneumoniae. At the same time, vaccine utilization remains … Bacterial pneumonia can occur on its own, or as a result of a viral cold or flu. From: Murray and Nadel's Textbook of Respiratory Medicine (Sixth Edition), 2016. bacterial pneumonia; viral pneumonia; community acquired pneumonia; children; Childhood community acquired pneumonia is a common illness. Viral vs Bacterial Pneumonia Pneumonia is an acute respiratory illness associated with recently developed radiological pulmonary shadowing, which may be segmental, lobar, or multilobar. This leads to extreme breathlessness and blue tint of the lips and under the nails. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Once bacterial pneumonia has been excluded, then viral pneumonia diagnosis was entertained. In some people, it can be fatal, especially among the elderly and those with respiratory disorders. The next step is to order a radiograph or X-ray if pneumonia is suspected. Doctors also break down the kinds of pneumonia by the causes of the disease: bacteria, viruses, or fungi. 2020;B978-0-08-102723-3.00013-5. The virus responsible for Covid-19, however, does not rapidly infecting large regions of the lung like other viruses. Related terms: Bacterial Pneumonia; … Bacterial and viral pneumonia are more common than pneumonia resulting from fungal infections. Because bacterial pneumonia can be treated with antibiotics, it is important to be able to differentiate between viral and bacterial pneumonia.2. All were treated for pneumonia at three hospitals in Chicago and two hospitals in Nashville between January 2010 and June 2012. From the above explanations, it becomes easy to differentiate between viral vs. bacterial pneumonia. Vaccine uptake challenges can be overcome with global measures to increase the access and use of vaccines. Some types of bacterial pneumonia can be prevented with vaccines, such as the aggressive bacteria Strep. Viral pneumonia can be an important problem for the increasing number of persons in the population who have deficiencies in immunity as the result of cytotoxic chemotherapy, organ transplantation, and the acquired immunodeficiency syndrome (AIDS). Analgesics and acetaminophen are given to reduce chest pain and fever. The vaccine is usually administered during wellness or prevention visits and cannot be given to a child with a fever. Immunization, Vaccines and Biologicals: National programs and systems on improving vaccination demand and addressing hesitancy. This category only includes cookies that ensures basic functionalities and security features of the website. In children greater than age four, it remains in the top three most common types. Viral vs. bacterial pneumonia discussed in the following article will help you understand the similarities as well as differences between these respiratory illnesses. Although various anti-viral agents can be used, depending on the specific vial pathogen, there is no effective drug treatment for most viral … There are two types of pneumonia: ‘lobar pneumonia’ is where just one section of the lung is affected while ‘bronchial pneumonia’ affects both lung patches. If you have a travel history to mainland China, please let your doctor know so that you can AU - Cawcutt, Kelly. While the process of combining the presence of respiratory symptoms with an abnormal exam and X-ray helps to delineate the cause of pneumonia, the only gold standard test to confirm the presence of a specific pathogen is a culture (a sample of respiratory mucous secretions or blood that is analyzed in the lab for the presence of a virus or bacteria). According to the World Health Organization’s most current statistical data, pneumonia is one of the leading causes of death in children — responsible for 18% of all deaths in children under age five. The pulmonary alveoli fill with fluid or pus making it difficult to breathe. T1 - Pneumonia with bacterial and viral coinfection. Sometimes, doctors call it "atypical" pneumonia. The treatment for bacterial pneumonia includes use of antibiotics like penicillin. But bacteria, fungi, and other microorganisms can also cause it. A person suffering from viral pneumonia shows the following symptoms –. The neutrophils reach the lungs and engulf the bacterial agents. Overview / Usage. Hope the above information has helped you understand the difference between viral and … Pneumoniae, prevented with the pneumococcal vaccine. Dual viral infections are common, and a third of children have evidence of viral-bacterial co-infection. The pneumonia was caused when bacteria that normally inhabit the nose and throat invaded the lungs along a pathway created when the virus destroyed the cells that line the bronchial tubes and lungs. At the same time, vaccine utilization remains stagnant. Because pneumonia is caused mainly by infectious microbes, pneumonia can be contagious.Pneumonia caused by chemical fumes or other poisons not made by infectious agents is not contagious.. Viral pneumonia, most often caused by influenza viruses, does not respond effectively to antibiotic therapy unless a secondary bacterial infection develops in the lungs. The inflammation of the alveoli, lungs and the condition where the lungs are filled with fluid is called pneumonia. ">Probiotics: Dynamic Immunity Protection, Whole30 Lunch: Easy Ideas to Keep You on Track. Symptoms of viral pneumonia are similar to that of bacterial pneumonia, although studies have shown a lower probability of having chest pain and rigors in viral pneumonias. The most common cause is called, fittingly enough, Streptococcus pneumoniae. We also use third-party cookies that help us analyze and understand how you use this website. The patient is given antibiotics only if there are chances of secondary bacterial infection. Viral pneumonia is a lung infection caused by a virus, such as influenza. From the results, almost all markers had a higher value in bacterial pneumonia. 2017;35(43):5776-5785. doi:10.1016/j.vaccine.2017.09.005. These practices include washing your hands regularly and disinfecting frequently touched surfaces. Does This Child Have Pneumonia? If a culture grows one particular microorganism, you know the exact cause. Viruses, bacteria, and fungi can all cause pneumonia. In the most recent 2020 textbook update from Biomedical Science, scientists state, “Diagnosis [of pneumonia] still remains challenging for medical providers. Dual viral infections are common, and a third of children have evidence of viral-bacterial co-infection. Despite increasing vaccine availability globally, the persistence of Strep pneumonia infections remains. The following paragraphs on viral vs. bacterial pneumonia will help clear out the differences between the two and help you find the causative agent of this respiratory ailment. Pneumonia caused by bacterial infections poses a much greater threat to the heart than pneumonia caused by viral infections, a new study suggests. Empiric antibiotic therapy for presumed bacterial pneumonia in hospitalized children should include coverage for _____ Streptococcus pneumoniae. Well, we're looking for good writers who want to spread the word. What are the Real Blue Light Effects on Our Bodies? As well as bacterial pneumonia, other types include: viral pneumonia – caused by a virus, such as coronavirus; aspiration pneumonia – caused by breathing in vomit, a foreign object, such as a peanut, or a harmful substance, such as … Jennings LC, Anderson TP, Beynon KA, Chua A, Laing RT, Werno AM, et al. Pneumonia in the immunocompetent patient. When a patient presents with these symptoms, the next step is to examine the lungs with a stethoscope. The symptoms of viral pneumonia develop gradually over a couple of days while bacterial pneumonia tends to develop rapid symptoms. Several bacteria and viruses and their combinations can cause the infection, but there is a lack of rapid and commercially available laboratory tests for most pathogens which may explain why the aetiology is rarely established in clinical practice … They can be caused by any of a large number of viral agents, including but not limited to: RNA viruses. A future influenza pandemic may unfold in a similar manner, say the NIAID authors, whose paper in the Oct. 1 issue of The Journal of Infectious Diseases is now available online. The common signs off pneumonia include fever, chills, productive cough and chest pain. Primary viral pneumonia is the least common and the most severe form of pulmonary complication in influenza virus infection (7). Respiratory viral infections contribute to significant morbidity and mortality annually. We assessed if clinical characteristics and blood inflammatory biomarkers could be used to distinguish bacterial from viral pneumonia. H1N1 pneumonia (swine influenza) H5N1 pneumonia (avian influenza) paramyxoviridae Lethargy, drowsiness and the blue tint are seen because the neutrophils, bacteria and the fluid from the blood vessels fill up the alveolar sacs. Antibiotics and antibacterial drugs will not help in treatment of viral pneumonia. H1N1 pneumonia (swine influenza) H5N1 pneumonia (avian influenza) paramyxoviridae Pneumonia is an infection in your lungs that is usually caused by bacteria, viruses or fungi. These viruses can transmit through the droplets of fluids in the air that are scattered after an infected person sneezes or coughs.These fluid drops may find their way into your body through your nose or mouth. It can occur both as a primary disease or, more commonly, as a complication that affects many seriously ill hospitalized patients. Viral respiratory tract infection is a broad term given to pulmonary infection caused by viruses. After entering the lungs, the virus reaches the cells of the airways and alveoli. Generally it is caused by viral or bacterial infections and also by some autoimmune diseases that causes the inflammation. We offer the latest information for being the best, most healthy “you” you can be, covering areas ranging from nutrition and exercise to sleep and stress management. In the case of bacterial pneumonia, there are more chances of patients getting completely cured. Vaccine. Thus, it is possible that some of the selected patients had mixed viral and bacterial pneumonia or other diseases entirely. Viral pneumonia can develop if a virus in your body travels to your lungs. In many cases, parents are often confused as they do not seem to understand if their child is showing signs of bacterial or viral pneumonia. Pneumonia is an infection in your lungs that is usually caused by bacteria, viruses or fungi. In severe cases, one will observe a blue tint under the nails and on the lips. 2017 Oct 3;318(13):1284]. We hope you are enjoying HealthHearty! We'll assume you're ok with this, but you can opt-out if you wish. The viruses that cause pneumonia are influenza virus, respiratory syncytial virus (RSV), adenovirus and parainfluenza virus. This information—including product information—is intended only for residents of the United States. Many of these outcomes can be prevented with global measures that increase access to immunizations, adequate pre and post-natal care for mother and baby, sufficient nutrition, and clean water.1. Walking pneumonia is a less severe form of bacterial pneumonia. orthomyxoviridae. This website uses cookies to improve your experience. If you can't cough up the material you took in, bacteria can multiply in your lungs. Incidence and characteristics of viral community-acquired pneumonia in adults. viral; bacterial. pneumoniae. But opting out of some of these cookies may have an effect on your browsing experience. 2008 Jan. 63(1):42-8. 6789 Quail Hill Pkwy, Suite 211 Irvine CA 92603. TY - JOUR. Having pneumonia can be frightening because this illness directly impacts one vital function — our breathing. The common causes of pneumonia include bacterial and viral infections. In children aged three months to four years, the most common type of bacterial pneumonia is Strep. Pneumonia is spread when droplets of fluid containing the pneumonia bacteria or virus are launched in the air when someone coughs or sneezes and then inhaled by others. This causes disruption of normal oxygen transportation leading to these symptoms. Despite increasing vaccine availability globally, the persistence of Strep pneumonia infections remains. In adults, viruses are the putative causative agents in a third of cases of community-acquired pneumonia, in particular influenza viruses, rhinoviruses, and coronaviruses. Viruses are the most common causes of acute respiratory infections, and causative agents of lower respiratory tract infection vary according to patient age and immunity ().Computed tomographic (CT) findings of viral pneumonia are diverse and may be affected by the immune status of the host and the underlying pathophysiology of the viral pathogen. This emphasizes the need for healthcare access globally.6. Pneumoniae, prevented with the pneumococcal vaccine. "Although it can occasionally be severe (even fatal), it usually does not damage the underlying lung and resolves completely." It normally influences individuals with a weak immune system like those beyond 65 years old years, immunocompromised people with HIV/AIDS, individuals with diabetes, heart illnesses, lung diseases, and so forth.. Staphylococcus aureus and Streptococcus agalactiae are known to cause pneumonia in infants. They can be caused by any of a large number of viral agents, including but not limited to: RNA viruses. N2 - Purpose of review We aim to review the epidemiology of pneumonia with bacterial and viral coinfection, the pathogenesis and clinical impact of coinfection along with the current state of treatment and outcomes. 1,2 Causes of death include lung injury, exacerbation of chronic conditions, and bacterial superinfections. Vaccines can prevent some types of pneumonia. Pathology. AU - Kalil, Andre C. PY - 2017/10/1. The two most common causes of pneumonia are from viral pathogens or bacterial pathogens. Viral pneumonia is usually caused by cold, flu and SARS-CoV-2 (the virus that causes COVID-19); having pneumonia from a viral infection can actually lead to the development of bacterial pneumonia. The difference between viral pneumonia and bacterial pneumonia Treatment is the biggest difference between bacterial and viral pneumonia. Bacteria tend to aggressively attack one lobe or section of the lungs causing a specific area of inflammation to take over the cells that were filled with air. COVID 19 FAQ _ 12 Feb 2020 findings. The most common causes of CAP vary depending on a person's age, but they include Streptococcus pneumoniae, viruses, the atypical bacteria, and Haemophilus influenzae.Overall, Streptococcus pneumoniae is the most common cause of … If you have viral pneumonia, you are still considered contagious until you feel better and have been free of fever for several days. We shall have a look at both the infections separately that will help lay some doubts to rest and distinguish between the two of them. You can also get pneumonia from touching an object previously touched by the person with pneumonia (transferring the germs) or touching a tissue used by the infected person and then touching your mouth or nose. The traditional role of viral pneumonia was as a disease … Pneumonia is the most common form of disease in human lungs, and Viral Pneumonia and Bacterial Pneumonia are the two major forms of Pneumonia that can cause severe damages to the human respiratory system which might lead to death if not treated correctly before it's too late. Bacteria continue to have a predominant role in adults with pneumonia. In severe cases, the person is hospitalized and given oxygen therapy along with intravenous fluids. The pneumococcal vaccine series, started at two months of age, significantly reduces the rates of bacterial pneumonia from Strep. You can also help prevent pneumonia and other respiratory infections by following good hygiene practices. Bacterial pneumonia symptoms are more severe than viral pneumonia. Hope the above information has helped you understand the difference between viral and bacterial pneumonia better. Differentiating bacterial from viral pneumonia is important for guiding targeted management and judicious use of antibiotics. Your risk for viral pneumonia is greater if you are older than 65, or you have lung or heart disease. You also have the option to opt-out of these cookies. Sign up to receive the latest and greatest articles from our site automatically each week (give or take)...right to your inbox. 2019;32(10):18-23. doi:10.1097/01.JAA.0000580528.33851.0c, Alicino C, Paganino C, Orsi A, et al. Superimposed bacterial infection can be suspected when secondary fever is noted after a period of defervescence, an increase in white blood cell count, and changes in radiologic abnormality. Y1 - 2017/10/1. 17 June 2020 update. Pathology. Bacterial pneumonia can occur on its own, or as a result of a viral cold or flu. Viruses are the most common cause of pneumonia in children, while in adults bacteria are a more common cause. Viral respiratory tract infection is a broad term given to pulmonary infection caused by viruses. Viral pneumonia patients have lower peripheral white blood cell and neutrophil count compared to those with bacterial pneumonia. Pneumonia in newborns can be caused by herpes simplex virus in rare occasions. These viruses can transmit through the droplets of fluids in the air that are scattered after an infected person sneezes or coughs.These fluid drops may find their way into your body through your nose or mouth. JAAPA. This website uses cookies to improve your experience while you navigate through the website. Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! Viral pneumonia is treated by giving the patient plenty of rest and warm fluids to drink. Viral Pneumonia. Secondary bacterial pneumonia can follow the initial phase of viral respiratory infection or can occur during the recovery phase. doi:10.1016/B978-0-08-102723-3.00013-5, Hunton R. Updated concepts in the diagnosis and management of community-acquired pneumonia. Most of the cases of pneumonia are caused due to a viral infection. It commonly affects people with a weak immune system like those over the age of 65 years, immunocompromised individuals with HIV/AIDS, people with diabetes, heart ailments, lung diseases, etc. The alveolar infiltrate was lobar in 36% of cases with bacterial pneumonia and in 15% of the those with viral pneumonia (p=0.001). Other bacteria capable of causing pneumonia include Escherichia coli, Klebsiella pneumoniae, Haemophilus influenzae, Pseudomonas aeruginosa and Moraxella catarrhalis. Bacterial pneumonia may be primary, secondary to a viral infection, or a co-infection with a virus 2. Pneumonia can be caused by a bacterial or viral infection. Sometimes, doctors call it "atypical" pneumonia. Would you like to write for us? With pneumonia, decreased breath sounds, wheezing, or crackles on listening to the lungs, are all indications that can help point towards a diagnosis. These bacteria tend to live in the upper respiratory tract and can be inhaled into the lungs. Bacterial pneumonia is for the most part caused by Streptococcus pneumoniae. Bacterial pneumonia symptoms are more severe than viral pneumonia. Viral pneumonia is a less extreme infection than bacterial pneumonia. The bacteria enter the body through inhalation of airborne droplets. You can get a viral infection by breathing in the virus or by touching something that has the virus on it. While doing so, these cells release cytokines that trigger activation of the entire immune system. Viral pneumonia is defined as a disease entity wherein there is the viral causation of oxygen and carbon dioxide gas exchange abnormalities at the level of the alveoli, secondary to viral-mediated and/or immune response-mediated inflammation. Copyright © 2002-2021 Pfizer Inc. All rights reserved. Thorax. Acta Paediatr. orthomyxoviridae. Because pneumonia is caused mainly by infectious microbes, pneumonia can be contagious.Pneumonia caused by chemical fumes or other poisons not made by infectious agents is not contagious.. Copyright © Health Hearty & Buzzle.com, Inc. Many contagious pneumonias have names, such as bacterial pneumonia, viral pneumonia, Mycoplasma pneumonia, and MRSA (methicillin-resistant Staphylococcus aureus) pneumonia, that indicate the type … Viral Pneumonia. Community-acquired pneumonia (CAP) is infectious pneumonia in a person who has not recently been hospitalized. Pneumonia is an inflammatory condition within the lungs produced as a result of infection that primarily affects the alveoli. Reynolds JH, McDonald G, Alton H, Gordon SB. With global vaccination rates currently plateauing, the challenges of diagnosing and treating community acquired pneumonia are even more pertinent for prevention of severe respiratory illness. Pathology. In rarer cases, it can be caused by a fungus. In adults, viruses are the putative causative agents in a third of cases of community-acquired pneumonia, in particular influenza viruses, rhinoviruses, and coronaviruses. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Secondary bacterial pneumonia can occur; Streptococcus pneumoniae infection, in particular, has an important interaction, and coinfection or secondary infection may exist. But there are a few differences between viral and bacterial pneumonia. An X-ray will show one white condensed area or opacity with the other areas of the lung visualized as having normal air exchange.5. When the bacteria enters the lungs, it triggers an immune response. 2008 Jul. This leads to many bacterial pneumonia symptoms that include –. The only marker increased in viral pneumonia and not in bacterial pneumonia was MxA1. The products discussed herein may have different labeling in different countries. Pneumonia is an infection of the lungs that can cause mild to severe illness in people of all ages. Pneumonia is usually the result of a bacterial infection. bacterial pneumonia and mixed viral and bacterial pneumonia (1). Pneumonia is a severe lung infection. An X-ray is likely to demonstrate a more “diffuse” involvement of the lungs.3,4, When a provider hears lung sounds that seem normal on one side but absent on the other, bacterial pneumonia is more likely. Address more pneumonia topics using the lesson titled Bacterial vs. For patients with a clinical diagnosis of pneumonia, a procalcitonin level of < 0.1 mcg/L is suggestive of a viral etiology, while a level > 0.25 mcg/L suggests bacterial infection. Pneumoniae. Staphylococcus aureus and Streptococcus agalactiae are known to cause pneumonia in newborn babies. Many contagious pneumonias have names, such as bacterial pneumonia, viral pneumonia, Mycoplasma pneumonia, and MRSA (methicillin-resistant Staphylococcus aureus) pneumonia, that indicate the type … You can get pneumonia as a complication of viral infections such as COVID-19 or the flu, or even a common cold. World Health Organization Health Topics. 97(7):943-7. . Pneumonia is the most common form of disease in human lungs, and Viral Pneumonia and Bacterial Pneumonia are the two major forms of Pneumonia that can cause severe damages to the human respiratory system which might lead to death if not treated correctly before it's too late. If you have bacterial pneumonia, you are still considered contagious until about the second day after starting to take antibiotics and you no longer have a fever (if you had one). Pneumonia, inflammation and consolidation of the lung tissue as a result of infection, inhalation of foreign particles, or irradiation. This difference is most likely because bacterial pneumonia causes more inflammation in the arteries — a risk factor for heart disease — than viral pneumonia … Symptoms in primary influenza pneumonia are non-productive cough, throat pain, headache, body ache and malaise followed by progressive dyspnea. COVID-19 pneumonia, however, is not bacterial, but viral. Sorry, you need to enable JavaScript to visit this website. : The Rational Clinical Examination Systematic Review [published correction appears in JAMA. The common constitutional symptoms of viral pneumonias are fever, chills, nonproductive cough, rhinitis, myalgias, headaches, and fatigue. These cookies will be stored in your browser only with your consent. Pneumonia is a severe lung infection. If you have a cold or flu, symptoms can last from days to more than a week.But if your fever, cough and feelings of being run-down persist, you may have pneumonia.The lung infection comes in a variety of strains; it can be viral or bacterial. The impact of 10-valent and 13-valent pneumococcal conjugate vaccines on hospitalization for pneumonia in children: A systematic review and meta-analysis. Viral pneumonia more likely if Bacterial Pneumonia more likely if Insidious onset; Lower temperature; Tachycardia or tachypnea out of proportion to the temperature; A paucity of physical findings on pulmonary exam disproportionate to the level of disability; Bilateral positive lung finding; Acute onset; Higher temperature Viral respiratory tract infection, especially influenza, can cause _____ pneumonia and predispose patients to _____ pneumonia. Like viral pneumonia, the list of bacteria that causes bacterial pneumonia is long. Bacterial pneumonia has symptoms similar to other pneumonia. Bacteria such as Streptococcus pneumoniae cause bacterial pneumonia. Viruses affect both sides of the lungs by producing a more homogeneous inflammatory reaction that causes increased cellular debris and mucus where previously open lung pockets were present. However, a combination of clinical symptoms, exam findings, and imaging is the best way to uncover the most likely culprit.3,4, Often viral cases of pneumonia begin as congestion and cough with or without fever in the first few days. Introduction. Antiviral drugs like zanamivir or amantadine may be prescribed. These cookies do not store any personal information. This is a promising development, and more studies need to be instituted, and if results are consistent, it may be an essential marker to rule in or out the viral infections. Anti-toxins and antibacterial medications won’t help in the treatment of viral pneumonia. But in the case of COVID pneumonia, it involves lung tissues as well which may lead to post-COVID complications,” he explains. Viral pneumonia is usually caused by cold, flu and SARS-CoV-2 (the virus that causes COVID-19); having pneumonia from a viral infection can actually lead to the development of bacterial pneumonia. Viral pneumonia is a pneumonia caused by a virus.Pneumonia is an infection that causes inflammation in one or both of the lungs. Shah SN, Bachur RG, Simel DL, Neuman MI. About 30% of pneumonia cases reported in the United States are viral.. influenza pneumonia. You'll get to explore more topics, such as: The definition of pneumonia Symptoms of viral pneumonia Some types of bacterial pneumonia can be prevented with vaccines, such as the aggressive bacteria Strep. Necessary cookies are absolutely essential for the website to function properly. Reference Module in Biomedical Sciences.

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