Question

Write short notes on any two viral diseases in man.

Answer 1

Viral diseases are the infectious diseases which can spread from one person to another. Chicken pox cause an itchy rash on the skin. It is a contagious disease. HIV causes AIDS which makes the immune system of the human weak. There is no proper treatment for HIV that can cure it completely. Proper precautions should be taken to prevent these diseases.

Complete answer:
Viral diseases or infection occurs when the organism’s body is affected by pathogenic virus. Various types of diseases can occur depending on the virus by which the body is infected. There are many viral diseases. Two of them are: chickenpox and HIV/AIDS.
Chickenpox is an infection which is caused by the varicella zoster virus. In this type of infection itchy a rash with small, fluid-filled blisters appears. Disease or been vaccinated against it. The person who is not vaccinated has a high risk of infection. It takes 10 to 21 days for the infection to last.. Symptoms like fever, loss of appetite, headache and tiredness, etc. mainly observed.
Chickenpox vaccines are now available to protect children against chickenpox. Routine checkup is recommended by disease control centers. Person who has not vaccinated is more prone to the chickenpox infection. Human immunodeficiency virus includes retrovirus that attacks the body’s natural defense system. The symptoms caused by this virus cause AIDS (acquired immune deficiency syndrome). It makes the immune system weak and makes people more prone to infections. Retrovirus controls the machinery of the DNA and processes viral DNA in the body of the infected person. It destroys the more CD4 cells and makes more copies of itself. HIV can be transmitted through sweat, saliva, urine or mainly passed through unprotected sex. Prevention of infection can be done by using condoms, clean needles and syringes and taking proper treatment during pregnancy. Antiretroviral treatment is effective to treat the infection and help humans to enjoy long and healthy lives.

Note:
Chickenpox can lead to serious complications such as bacterial infections of the skin, dehydration, Pneumonia, toxic shock syndrome and many more. If aspirin is taken during chickenpox infection it can cause Reye’s syndrome. HIV if left untreated, it takes 10 to 15 years to damage the immune system severely. After that, the immune system cannot defend itself. Rate of HIV progresses varies depending on age, general health and background. Antiretroviral treatment reduces the level of HIV so that it cannot pass on to other people.