Answer:
He should give them to the owner
Explanation:
They help to prevent the disease from occurring. The immune system becomes familiar with the pathogen and learns how to fight it. Its the same process with vaccines
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
Learn more about influenza here:
brainly.com/question/12975693
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Answer:
so she would feel a lot of pain
Explanation:
if she didn’t take those, she would have pain in her joints and it might be even hard for her to walk and get around since she has rheumatoid artgritis
Answer:
chlorination
Explanation:
The use of chlorination to treat drinking water, which began in 1913, reduces the incidence of waterborne diseases.
