Always be sure to wash your hands
Scientists are creating vaccinations that prevent people from getting bird flu. If the virus mutates, a new vaccine needs to be made. The vaccine needs to be tested, which can be dangerous. It also takes a long time for scientists to know whether the vaccine works.
<em><u>Answer:</u></em>
<em><u>Answer:i copied the answer below•</u></em>
<em><u>Answer:i copied the answer below•Explanation:</u></em>
<em><u>Heart disease, heart attack, high blood pressure and stroke. Sleep problems. Weight gain. Memory and concentration impairment.</u></em>
