viruses contain either DNA or RNA, the nucleic acids found in all living organisms. On the other hand, viruses lack the capacity to independently read and act upon the information contained within those nucleic acids; for this reason, viruses aren't considered "alive." ...
Simple lower and upper urinary tract infections caused by bacteria residing in the patient are not considered to be contagious. AreUTIscontagious? The answer depends upon what microbe (bacteria, fungus or other infectious organism) is infecting the urinary tract. The urinary tract consists of the u...
People are spreading holiday cheer — and germs, leading tosicknesses like COVID, flu, RSV,norovirus stomach bugand more. But how long are you contagious?Dr. Carla Garcia Carreno,Children's Medical Center Plano director of infection prevention and control, is already seeing upticks in RSV, CO...
Though it may not apply to Covid-19, with other infectious diseases, such community protection can be important for infants, who are too young to be vaccinated. However, a critical number of people need to be vaccinated for this to work; for example, 42,000 people in the United States ...
Why is the influenza virus considered one of the most dangerous viruses? Which of these pathogens are the most difficult to control, bacteria or viruses? What serious health problems, if any, are caused by thermoduric bacteria? Explain how infectious and non...
How long is norovirus contagious? People can still spread the virus to others for days after they've recovered, and the virus can survive on surfaces and continue to infect people for weeks. "You can still spread norovirus for 2 weeks or more after you feel better," the CDC website state...
Certain types of pneumonia are contagious (spread from person to person). Pneumonia caused by bacteria or viruses can be contagious when the disease-carrying
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Infants and young children are also very susceptible; globally, pneumonia kills more children under the age of 5 than any other infectious disease. Other vulnerable groups include people who are immunocompromised or who have other serious underlying medical conditions. Respiratory infections can be a...
This can cause a sore throat and headache, and Cold symptoms usually start 2 or 3 days after a make it hard to breathe.person has been exposed to a source of infection. F. Most teens get between two and four colds a year.People with colds are most contagious(接触传染的)G. Although ...