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Pneumonia...: Is an infection in the lungs. Common causes include viruses and bacteria, which can be contagious. How contagious it is, and how it's treated, depends on the germ that's causing the pneumonia. Another cause might be something called "aspiration, " where some substance like milk or stomach contents gets sucked into the lungs. This is not contagious. ...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: Acute bronchitis is currently considered to be caused mostly by viruses, which are quite contagious. It can be transmitted in the air, by coughing, and by contact with the sick person's hands (if the hands have been coughed on or touched the mouth). The most contagious period is usually early in the illness, and shortly before the illness begins to show symptoms. ...Read more
Yes: Most of the time, acute bronchitis is caused by a virus. Influenza (flu) viruses are a common cause, but many other viruses can cause acute bronchitis. Flu viruses spread mainly from person to person by droplets produced when an ill person coughs, sneezes or talks. Flu viruses also may spread when people touch something with the virus on it and then touch their mouth, eyes or nose. Many other respiratory viruses are spread in these ways too. To reduce your risk of catching viruses that can cause bronchitis: Avoid close contact with people who have the flu or another respiratory illness, Wash your hands often or use an alcohol-based hand sanitizer, Avoid touching your eyes, nose and mouth, Get an annual flu shot. People who have chronic bronchitis or asthma sometimes develop acute bronchitis. In these cases, the acute bronchitis is most likely a complication of the existing condition. This type of bronchitis is not caused by an infectious virus, so it's less likely to be contagious. ...Read more
It can be: Bacterial pneumonia can be deadly, particularly in the elderly and in people with poor immune systems (on chemotherapy, with hiv, or even uncontrolled diabetes, amongst others). There is a vaccine available to treat one of the most deadly types of bacterial pneumonia, strep pneumonia. Typically, it is given to those at highest risk of developing or having a bad outcome from bacterial pneumonia. ...Read moreSee 1 more doctor answer
TDAP: Adults have been given an additional component to the original tetanus vaccine for many years now. So it now includes tetanus, diphtheria and pertussis components in the vaccine. It is given as a one time booster vaccine when you are due for a tetanus vaccine, but also given after pregnancy or when you are caring for a newborn to protect them from pertussis. ...Read more
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