A. Through direct contact. B. Through contaminated food. C. Through the air. D. Through water. 相关知识点: 试题来源: 解析 C。中文解析:文章中提到“Influenza virus spreads mainly through the air when an infected person coughs or sneezes.”,所以流感病毒主要通过空气传播。反馈...
What is influenza (the flu)?The flu is a viral infection of the lungs and airways. The virus spreads through droplets in the air when someone with flu coughs or sneezes. You may also get the virus through close contact with someone who has the flu. For example, a person with the ...
A. B virus is relatively stable and causes mild infections that do not spread far through the population. B. B virus is unstable, and is responsible for the epidemics that cause frequent concern. C. B virus is extremely unstable and is responsible for some of the worst outbreaks of the di...
百度试题 结果1 题目What does "HIV" stand for? A. Hepatitis Influenza Virus B. Human Immunodeficiency Virus C. High Intensity Virus D. Heart Infection Virus 相关知识点: 试题来源: 解析 B 反馈 收藏
Influenza is a viral infection that affects the respiratory tract. Also called the flu, influenza can cause a fever, fatigue...
What makes an influenza virus virulent?amikacinMRSANMRarbekacin-resistanceWhat makes an influenza virus virulent?. By - Jane Bradburydoi:10.1016/S0140-6736(05)79588-XJane BradburyLancetBradbury J. What makes an influenza virus virulent? Lancet 1998; 352: 629....
Influenza hemagglutinin is a type of substance that is attached to the surface of the influenza virus and is responsible for...
HIV (human immunodeficiency virus) is a viral infection that slowly weakens your immune system. The virus kills a type of white blood cell called CD4. A normal CD4 count ranges from 500 to 2,000. You have HIV when your CD4 count ranges from 200 to 500. You have AIDS (acquired immune ...
What is known about the influenza virus A. It was first found in a group of very old birds. B. All the different strains can be found in wild birds. C. It existed over 100 million years ago. D. It can survive in many different places....
Get the influenza (flu) vaccine as soon as recommended each year. The flu vaccine is usually available starting in September or October. Flu viruses change, so it is important to get a flu vaccine every year. Get the pneumonia vaccine if recommended. This vaccine is usually recommended every...