Question

Describe five harmful effects of viruses in humans.

Answer 1

Hint: The virus is microscopic germs and is made up of genetic material present inside a coating made up of protein. viruses cause many infectious diseases such as the common cold, flu. you may also cause severe illness such as AIDS, EBOLA, COVID-19. They invade the normal cells just like the kidnappers, and use multiply in those cells to produce another virus-like themselves

Complete answer:
-The most widespread infection caused by a virus is a viral disease. The virus is a microorganism that causes a wide variety of viral diseases. A most common type of viral disease is the common cold which is caused by the infection in the upper respiratory tract.
Five harmful effect of viruses in humans-
1)Virus in some cases can cause serious life-threatening conditions such as dehydration or pneumonia.
2) Viruses are also called diseases by disturbing and organisms’ homeostasis. Some examples of viruses that cause a disturbance in the homeostasis of the organism are rabies, mumps, measles, AIDS, herpes, polio, common cold, conjunctivitis, smallpox, hepatitis, cancers, and many more diseases.
-Mumps infects saliva gland cells, measles infects nasal and throat cells.
3)Virus causes disease and cancers. It also causes brain damage (for example measles) and also destroys organs (for example hepatitis).
4)HIV virus weakened the immune system, resulting in fatigue, weight loss, frequent fever and sweats, fungal infection, nerve disease, skin rashes and flaky skin, diarrhea, spots, or blemish on the tongue, in mouth, or throat.
5)Human papillomavirus causes cervical cancer by integrating its own DNA into the host cell DNA and there they remain in a dormant condition.
The viral disease can spread from person to person. Thus, it is a contagious disease. The virus enters the body and there they begin to multiply and produce his own copy of viral DNA or RNA.
-Viruses can provide some benefit also. It is used in genetic engineering to transfer genes, especially between bacteria.

Note: Not all viruses cause diseases.some are harmful because the virus enters a host cell and puts pressure on the host cell to make copies of the virus and then the viruses are released from the host cell.
Example - Retrovirus.