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Author Question: You need to put on a face mask. You should: a. Let the person see your face first b. Enter the ... (Read 23 times) |
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Vaccines prevent between 2.5 and 4 million deaths every year.
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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The human body produces and destroys 15 million blood cells every second.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.