3.阅读理解
It's
been over a year since COVID-19 first appeared and the virus continues to be a
problem in many parts of the world, scientists have realized the development of
vaccines (疫苗) is a solution to the
pandemic. A global effort to vaccinate as many people as possible would be
needed, since vaccines typically take years to develop.
On
Dec 2, 2020, the first COVID vaccine, the Pfizer vaccine, was approved (批准) by UK health department. However, these vaccines must be stored at
very low temperatures, which is not possible everywhere. In response, Chinese
companies like Sinopharm and Sinovac have developed vaccines that can be kept
at normal temperatures.
Now,
vaccines are being rolled out all over the world, with millions of people being
vaccinated every day. In China, 285 million vaccine doses (剂量) had been given so far. Meanwhile, the US has given out 247 million
doses. The UK now stands at 50 million doses.
Although
there have been rumors about
vaccines being unsafe, most of people seem to realize the importance of
vaccination for building mass immunity (群体免疫)
in order to stop the vims from spreading. The world has come to understand that
the vaccines will protect us. Therefore, sharing vaccines has become a key
factor of staying safe and healthy worldwide.
Unfortunately,
not everyone can get the vaccine yet. Children
below the age of 16 can't be vaccinated because they have not yet been tested
on them. Those who have a history of vaccine allergies (过敏) shouldn't get it, either.