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Doctor insights on: How Is Pneumonia Spread Among Humans

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When did pneumonia first start affecting humans?

When did pneumonia first start affecting humans?

Since the: first humans. Infectious diseases have always affected humans and all animals. ...Read more

Dr. Michael DePietro
2,165 doctors shared insights

Pneumonia (Definition)

Pneumonia is an inflammation of the lungs, most ...Read more


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What is Legionnaires’ disease? Describe this strain of bacterial pneumonia and its possible origins in human infection.

What is Legionnaires’ disease? Describe this strain of bacterial pneumonia and its possible origins in human infection.

Legionnaire'sDisease: is a severe form of pneumonia caused by the Legionella bacteria, usually contracted through contaminated ventilation systems. It can be quite deadly if not recognized and treated. For more info: http://www.mayoclinic.org/diseases-conditions/legionnaires-disease/basics/definition/CON-20028867 Hope this helps!! ...Read more

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Can you explain how pneumonia spreads and attacks the body?

Can you explain how pneumonia spreads and attacks the body?

Pneumonia: Pneumonia occurs when pathogens infect the spaces where you breathe, your trachea or windpipe expands into a big network of airspaces where oxygen is brought into close contact with blood. When our immune system experiences a breach, these organisms can grow and enter the bloodstream in addition to interfering with gas exchange. Pathogens in the bloodstream then sail to and attack anywhere. ...Read more

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In what way does bacterial pneumonia spread?

In what way does bacterial pneumonia spread?

Respiratory droplets: Pneumonia is spread from person to person via respiratory droplets released when a person coughs, sneezes, laughs, or talks. The bacteria can live in a person's throat without causing symptoms, so you can even get it from a person who doesn't look sick. Avoid the spread of germs by washing your hands regularly, covering your mouth when you sneeze or cough, and being cautious around sick people. ...Read more

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How long can it take for pneumonia to spread from just one lobe of one lung to all of both lungs and get into the blood stream?

How long can it take for pneumonia to spread from just one lobe of one lung to all of both lungs and  get into the blood stream?

Depends: If you are very young or elderly it can be very serious. If you have a strong immune system you may fight it longer. A lot depends on what organism is causing the pneumonia. Some are more aggressive than others. For some it may be a matter of hours and some it may be days. ...Read more

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Person has stage 4 cancer with mets to the brain, and now has bilateral pneumonia, how bad is this? Is this the cancer trying to spread? What's next?

Person has stage 4 cancer with mets to the brain, and now has bilateral pneumonia, how bad is this? Is this the cancer trying to spread? What's next?

Very bad: The cancer does not have to try to spread, it already has. Discuss this with the person's doctor and get an estimate of how long they are expected to survive and whether it is time to call in hospice. You also need to ask what further therapy is likely to make a meaningful difference in survival and whether that survival is functional or just further misery. Good luck. ...Read more

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Hi i'm 22 and have congestive heart failure, the hospital thought it might be from walking pneumonia that spread to my heart, is that possible?

Hi i'm 22 and have congestive heart failure, the hospital thought it might be from walking pneumonia that spread to my heart, is that possible?

Viral disease: Many pneumonias are due to a viral lower respiratory tract infection. Most, if not all, of the viruses that cause lower respiratory tract infections can also cause myocarditis. One of the outcomes of viral myocarditis is the development of a cardiomyopathy and heart failure. In some cases, the heart recovers over the first few months. Heart failure therapy may enhance recovery. ...Read more

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What can cause pneumomia to rapidly spread in body?

There are: multiple potential causes of pneumonia, it is not a single disease. In general, though, a compromised immune system or other comorbid factors, and/or infection with a particularly virulent pathogen, may predispose to systemic spread. ...Read more