A primary reason for needing a new vaccine for influenza each year is that there could be mutation of surface proteins leading to a new outbreak
<h3>What is antigenic drift?</h3>
Antigenic drift is a phenomenon that causes small changes or mutations in the genes of influenza viruses leading to changes in their surface proteins of the virus, which are HA (hemagglutinin) and NA (neuraminidase).
For this reason, new influenza vaccines are produced yearly to alter the effects that may emerge as a result.
Thus, a primary reason for needing a new vaccine for influenza each year is that there could be mutation of surface proteins leading to a new outbreak
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Answer:
<u><em>The answer is</em></u>: <u>The brain controls and regulates the actions and reactions of the body.</u>
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Explanation:
The brain controls and regulates the actions and reactions of the body. <em>It continuously receives sensory information, quickly analyzes this data and then responds, controlling the actions and bodily functions.
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<u><em>The answer is</em></u>: <u>The brain controls and regulates the actions and reactions of the body.</u>
Answer:
what .,................ .
Answer: c. Maximal and near-maximal strength testing is not safe for those with risk factors for coronary heart disease.
Explanation:
The one -repetition maximum or 1RM is a test that is performed so as to assess the strength capacity of the individuals in typical non-laboratory environments. It can be define as the maximum weight that an individual can lift for one repetition only with the implementation of the correct technique.
The C is false this is because of the fact that 1RM testing is actually safe for people with the coronary heart disease. But it is not suitable for orthopedic patients.
