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Depends: Most pathogens that cause pneumonia are not contagious. Some organisms like MRSA can spread to healthy contacts and cause colonization. Some organisms like the virus, influenza can cause pneumonia and are contagious during the illness. Drug sensitive tuberculosis is contagious until several weeks into effective multi-drug therapy. ...Read more
Depends: Pneumonia is inflammation of one or both lobes of the lungs. Frequently caused by infection but not always (chemical). Infection may be caused by viruses, bacteria, parasites, fungal etc. Sx include chills, fever, productive and or nonproductive sputum, chest pain, SOB. Dx clinically or with chest xray, sometimes labs blood, urine sputum cultures. Medicine depends on cause. Legionella not contagio ...Read more
Most forms - yes.: There are some bacteria and viruses that specialize in causing pneumonia. These are definitely contagious. For older folks or folks that have immune problems/chronic diseases, these patients can get protection with a 'pneumonia shot'. Then there are 'flu' shots that I'm sure you've heard of. Some types of pneumonia don't spread like 'choking on your vomit' - we call that aspiration pneumonia. ...Read more
Yes: Although not that simple. When someone has MRSA pneumonia, the droplets that come out when they cough can contain MRSA. MRSA is not airborne except in droplets and it doesn't survive long outside. It is acquired by touching a person or object that has live MRSA bacteria on it. Hand washing is best for prevention. the patient with MRSA pneumonia should be isolated and wear a mask. ...Read moreSee 1 more doctor answer
MRSA: Communicability of MRSA is usually lesion to hand to hand to area where it can created disease, but respiratory transmission is not likely. If the patient is not coughing and the potential individual to whom it is going to be transmitted does not touch the patient they are unlikely to become infected. ...Read more
Pneumonia & Pleurisy: Pneumonia is usually a severe infection to either bacteria or virus. Pleurisy is usually a secondary illness or consequence of a lung infection. There are so many different scenarios with both that I am not sure how to answer the rest of your question. Neither of them are good to have. And, both require some treatment. ...Read more
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