Question

Name any five diseases caused by a virus.

Answer 1

Hint: The virus is surrounded by a protein coat and is a small collection of genetic code i.e DNA or RNA. By using the component of the other cell they infect host cells and make copies of themselves inside them and eventually damage or kill the entire host cell. It is found everywhere on the earth.

Complete answer
Five diseases caused by the virus are -
1)Chickenpox - It is caused by the varicella-zoster virus and affects kids and adults both. It is a highly contagious infection. In this disease, skin becomes itchy and has a rash with red blisters.
-The blisters pop and start to leak after the course of several days of infections and form crust and scab over an infected area before finally healing.
-This disease is highly contagious to those who have not been infected with this disease earlier or have been vaccinated against it.
-Common symptoms include itchy blisters like rash on the skin. It can be prevented by vaccine and antiviral medications.
2)Rubella - It is also called German measles or three-day measles. It is a highly contagious viral infection that can be preventable by the vaccine.
-The infected person has distinctive red rashes on their skin and it can be spread through direct contact with the saliva or mucus of an infected person. it also spread through the air by respiratory droplets produced from coughing or sneezing.
-Symptoms include red rashes on the skin, mild fever, and headache. Symptoms usually appear 2 to 3 weeks after exposure to infection. No treatment is available to get rid of the infection but medications can help. Vaccination helps in preventing this disease.
3) Measles - It is caused by Morbillivirus. This viral infection a serious for small children. This infection mostly was seen in the winter and in the Spring season and is spread through the air by the respiratory droplets produced from coughing or sneezing.
-Its symptoms usually appear 10th to 14 days after exposure to the virus. symptoms include cough, running nose, inflamed eyes, fever, red skin rashes.
-No treatment is available to get rid of this infection but vitamin A can help with the symptoms.
4)AIDS(Acquired Immune deficiency syndrome) - it is caused by the human immunodeficiency virus (HIV) and interferes with the body's ability to fight infection. This virus is transmitted through contact with the infected blood, semen, or vaginal fluids.
-Flu-like symptoms appear within a few weeks of infections such as fever, fatigue, and sore throat.
-Then disease becomes asymptomatic until it progresses into AIDS. weight loss, fever or night sweats, fatigue, and recurrent infections are the symptoms of AIDS.
-Till now, no cure is available for AIDS but antiretroviral regimens can slow the progress of the disease as well as prevent secondary infections and complications.
5)Chikungunya - this disease is caused by the chikungunya virus (CHIKV). These diseases are transmitted to humans by infected mosquitoes.
-This disease can be seen particularly in Africa, Asia, and India.
-Within a week of the infection its symptoms usually appear to include fever and joint pain, muscle pain, headache, fatigue, and rashes on the skin may also appear.
-After the virus runs its course people feel better within a week or so. Treatment is generally provided to relieve the symptoms.

Note: -So, the virus is the small infectious agent that causes many infections made up of pieces of genetic material such as RNA or DNA and enclosed in a protein coat.
-It enters the cells in the body and uses its component that can help them to multiply as a result they damage or kill the host cell.
-The viral disease is a health condition or any type of illness caused by a virus.