Question

What is latent infection?
a.Does not show signs and symptoms at first
b.It can be treated at the earliest
c.Shows signs and symptoms at the earliest
d.Both B and C

Answer 1

Hint: In latent infection, the disease is not produced in the body but the virus is actually not eradicated. It means the pathogen remains in our body without showing actual effects.

Complete step by step answer:
1.In latent infections ,the virus can exist inside our body as a non-infectious state means the disease is not produced as no signs are visible.
2.But reactivation of the infection can be triggered by various stimuli, such as change in cell physiology, super infection by another virus and physical stress or some trauma.
3.Viruses , which can show latent infection can be present at same time at different cell types of one or more tissues.
4.It is concluded that the characteristics and mechanism by which the infections are maintained by both virus and cellular gene expression and the change of host immune response.
5.Some examples of latent infections are : Herpes simplex virus(HSV); Cytomegalovirus (CMV); Varicella zoster virus(VZV); Epstein-Barr virus(EBV) and human immunodeficiency virus (HIV).
6.On the other hand, chronic infection is a type of infection which shows signs and symptoms and which when treated is eventually cleared.

Hence the correct answer is option(A)

Note: There total of four types of infections:
Viral infection- It is caused by a minute infectious organism, even smaller than bacteria. It requires a host cell in which they carry out their life cycle. Example- common cold, measles, etc.
Bacterial infection- These are single celled microorganisms. Some bacterial infections are : strep throat, gonorrhea, etc.
Fungal infection: It includes yeasts and molds. Example- ringworm, athlete’s foot, etc.
Parasitic infection: It is caused by Parasites who live on or in host organisms. Example-Protozoa, helminthes, etc.