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dedylja [7]
2 years ago
5

Why doesn't one case of influenza infection confer lifelong immunity on the host?

Social Studies
1 answer:
denis-greek [22]2 years ago
7 0

The reason why one case of influenza does not confer lifelong immunity is that the virus tends to mutate overtime which makes it unrecognizable to the immune system.

<h3>Why is it difficult to get immunity to influenza?</h3>

Influenza is caused by a virus which tends to mutate overtime in order to stay ahead of medical technology.

As a result, this mutation makes the original virus unrecognizable to the immune system which would then be unable to fight it.

Find out more on natural immunity at brainly.com/question/21480961

#SPJ1

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Which phrase of the Preamble is addressed when the federal government gives a region federal disaster funds?
Inessa05 [86]
"secure the blessings of liberty" hope this helps
5 0
4 years ago
During a squat, your client's knees buckle inward as she ascends. This problem is most likely due to
Thepotemich [5.8K]

Answer:

Knee vulgus

Explanation:

In simple words, Knee Vulgus is a condition in which the knee caves inwards towards the body's midline. Throughout a squat, knee vulgus is a typical incorrect movement sequence.  The feeble hip captors are frequently overpowered by the powerful hip adductor muscles (placed in the inner thigh) (gluteus medius and gluteus minimus).

7 0
3 years ago
What two European countries had the most impact<br> on the New World?
Lena [83]

Answer:

England and Spain

Explanation:

During age of exploration, Many European countries invested heavily in the sailors & explorers with the hope that they would come back with new information that could benefit their country. (such as new land to obtain natural resources or new trade routes).

Compared to other Europeans, England and Spain are considered to be the most successful in their effort.

They managed to colonize a lot of regions and make local people learn  their cultures, Religion, language, and political system.

One of the  proof of this could be seen in the most spoken language today. If we only count the language that spoken by people outside their country of origin, English and Spanish Language ranked 1st and 2nd .

7 0
3 years ago
The basic tenet of the contingency approach to leadership was that:
gregori [183]

Answer:

D.

Explanation:

The contingency approach of leadership asserts that leadership approach should be given thinking on the natural behavior of the leader and the situation requirement. So, not all good behaviors are good in every situation. So, for this theory, effective leadership depends on adapting the circumstances to the leader's style.

7 0
3 years ago
Which part of the Constitution explains its purpose as, “to form a more perfect Union, establish Justice, insure domestic Tranqu
dybincka [34]

The correct answer to this open question is the following.

Although there are no options attached we can say the following.

The part of the Constitution explains its purpose as, “to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity” is the Preamble.

Indeed, the Preamble is the opening paragraph of the United States Constitution.

Delegates of the colonies met at the Constitutional Convention held in the city of Philadelphia, Pennsylvania from May to September 1787 to decide the kind of government that the new nation was going to have. There were sounded debates between federalists such as Alexander Hamilton and John Jay, with antifederalists such as Thomas Jefferson. Federalists supported a strong central government. Antifederalists were against it. Finally, James Madison drafted the Bill of Rights and both parties agreed to sign the Constitution.

5 0
3 years ago
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