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IrinaK [193]
3 years ago
5

Explain why the individual who is a carrier for hbv is considered a threat to public health.

Biology
1 answer:
posledela3 years ago
7 0

Answer:

HBV (hepatitis B) is a viral infection that attacks the liver.  It can cause acute or chronic disease and it is transmitted through contact of blood or other body fluids of an infected person.  

<em>An infected person can be transmitted through birth, sharing of needles, sharing of common household personal hygiene items, direct contact with an open or bloody sore, or through sexual contact.</em>

It is a hidden treat because those who have hepatitis B can transmit it to another (blood/other body fluid); if they know they have it or not.  

Acute hepatitis B is short-term (6 months after being exposed) and they can become immune and can not get infected again; but it can lead to chronic hepatitis B (depends on how healthy the person is).

Chronic hepatitis B can cause liver damage, cirrhosis, liver cancer, and death.  

Explanation:

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It is called mimicry when a living thing copies the appearance of another living thing as a means of protection.

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Mimicry is used primarily by living things as a means for protection and to decrease the chances of the living thing being killed. For example, a frog that is prey to a toad could have bright colors (bright color frogs are often poisonous) that don't mean anything to the frog and it's species, but to the toad, the frog is poisonous and should not be eaten, so the toad does not eat the frog because it is brightly colored.

Without mimicry, the frog would have been eaten because it wouldn't have had looked like a poisonous frog, or something that the toad would avoid.

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