THE HUMAN IMMUNE SYSTEM
AIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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one year
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a few hours
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forever
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a few months
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Detailed explanation-1: -A viral infection usually lasts only a week or two. But when you’re feeling rotten, this can seem like a long time! Here are some tips to help ease symptoms and get better faster: Rest.
Detailed explanation-2: -People with moderate or severe COVID-19 should isolate through at least day 10. Those with severe COVID-19 may remain infectious beyond 10 days and may need to extend isolation for up to 20 days. People who are moderately or severely immunocompromised should isolate through at least day 20.
Detailed explanation-3: -Phagocytes engulf the intruders, break them down and chew them up. Lymphocytes are further broken down into two more types. The B lymphocytes (or B-cells) create antibodies and alert the T lymphocytes (or T-cells) to kill the pathogens.
Detailed explanation-4: -Some viruses, such as the four shown here, can linger in the body long after initial infection-in some cases for months, in other cases for a lifetime.