A boy falls ill with a new virus that nobody has described before (we'll call it Virus A). He contracted this virus from rat droppings near his home. After he falls ill, 80% of the members of his village become sick with the disease caused by Virus A. However, public health officials are able to confine the disease to one particular geographic region and to eliminate it completely after several months. Which of the following is true of Virus A? a) It caused a pandemic. b) It caused an epidemic/outbreak. c) It is a re-emerging virus. d) It is an emerging virus. e) It is a deliberately emerging virus. f) It is a zoonotic virus.

the following options are true of the Virus A:

--> b (It caused an epidemic/outbreak)

--> d (It is an emerging virus.)

--> f (It is a zoonotic virus.)

Explanation:

Virus is a type of microorganism that contains a genetic material and is surrounded by a protein coat called capsid.

Virus such as virus A from the question is an EMERGING VIRUS because it just newly infected the boy who is it's first host causing a disease that is unknown. An emerging virus has the ability of increasing in incidence which happened with Virus A although is was put under control through public health activities.

Virus A is said to cause an EPIDEMIC because it occured in an unusually high number of individuals in a community at the same time. From the question after the boy fell sick,80% of the members of his village(one particular geographic region) became sick with the disease caused by Virus A.

A large number of infectious diseases that occur in humans also occur in animals. A disease that occurs primarily in animals (example, rats) but is occasionally transmitted to humans, either through direct blood contact, faecal or urine of these infected animals, is called Zoonosis. Therefore Virus A is a zoonotic virus because the boy contracted this virus from rat droppings near his home.

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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