The exact percentage depends on the infection of the disease, and theflu is highly infectious. People should not count on herd immunity to protect them.【小题5】A. I don't think soB. Herd immunity protects nobodyC. Don't skip your regular workoutD . Many people have been infected with...
especially if you fall into a high risk category. Fortunately, you now know the major warning signs to look for and that early treatment within the first one or two days can treat the flu.
To make this discovery, scientists infected two groups of mice with two different infectious doses of influenza A (H3N2) and analyzed several aspects of inflammation and immunity during the initial infection as well as during reinfection with a different strain of virus. The first group was infect...
So, deadly viruses like SARS does not spread as widely nor as fast. COVID-19 is not as deadly as we think, but highly infectious. During the 2009 flu season, tens of million were infected in the United States, but the mortality rate was 0.1% to 0.2%. The world was very scared at ...
Flu, or a common cold, is an infectious disease. We do not recommend flying when you are ill due to the risk of pressure-related injuries, and it is not advisable to travel with respiratory infection symptoms. Generally, airlines cannot tra...
How many days after your period can you get pregnant? The ovaries usually release the egg (ovulation) 14 days before the start of your next period. But it is hard to know for certain precisely when ovulation occurs, especially if your periods are irregular. The chances of getting pregnant ...
Bird Flu Viruses that normally occur in birds cause bird flu, and there are many different strains. Some of these viruses can pass from birds to other animals, and most of them are mild. However, there have been several human outbreaks of the H5N1 strain of bird flu in Asia and Europe...
Not only does a push for a chickenpox vaccine protect a child and his or her classmates, it can also protect grandparents who may not have had chickenpox. Protecting the elderly is also the idea behind another vaccination that many of us line up for each winter: the flu shot. Between 12...
How the Flu Works What is the Flu? By:Stephanie Watson Thefluis a respiratory illness caused by the influenza virus. The flu is not the same as acold, although they share many of the same symptoms. The cold is caused by a different virus, and it tends to have milder symptoms than ...
每年全世界都有较多的人死于流感。2019年“世界流感日”科普活动暨学术会议于11月1日在北京举行,本次活动的主题是“识流感、防流感、治流感”。那么作为中学生,为了使自己保持健康,远离疾病,我们在日常生活中应该注意些什么呢?请你以Protect Ourselves from the Flu为题,写一篇短文。