Disease caused by Virus?
VerifiedAnswer: Influenza / COVID-19 / Measles (any one)
Explanation:
Viruses are tiny infectious agents that can only reproduce inside living cells of other organisms. They cause numerous diseases in humans, and three common examples are Influenza, COVID-19, and Measles. Let's understand each of these viral diseases better.
Influenza, commonly known as the flu, is caused by influenza viruses. There are three main types: Influenza A, B, and C. The symptoms include fever, body aches, cough, runny nose, and fatigue. This viral infection spreads through respiratory droplets when infected people cough, sneeze, or talk. Seasonal flu vaccines are developed each year to protect against the most common strains.
COVID-19 is caused by the SARS-CoV-2 virus, which belongs to the coronavirus family. This disease emerged in 2019 and became a global pandemic. Symptoms range from mild cold-like symptoms to severe respiratory problems. The virus primarily spreads through airborne droplets and close contact with infected individuals. Preventive measures include vaccination, wearing masks, and maintaining social distancing.
Measles is caused by the measles virus and is highly contagious. It typically affects children but can occur at any age if not vaccinated. The disease is characterized by high fever, cough, runny nose, red eyes, and a distinctive red rash that spreads across the body. Measles can lead to serious complications including pneumonia and brain inflammation. The MMR vaccine provides excellent protection against this disease.
Other notable viral diseases include chickenpox (caused by varicella-zoster virus), hepatitis (caused by hepatitis viruses A, B, C, etc.), polio (caused by poliovirus), and the common cold (caused by rhinoviruses and other viruses). Understanding viral diseases helps us appreciate the importance of vaccination, proper hygiene, and public health measures in preventing their spread.
