Common Viral Diseases

The most common viral disease that is common cold. Common cold is caused by Rhinovirus. This virus infects nose and respiratory tract. Its Symptoms are: Nasal congestion and discharge, Sore throat and cough, Tiredness and headache followed by a fever. Another viral disease which is chicken pox. Chicken pox is a highly contagious disease. Its incubation period is 14 to 21 days. Children of less than 10 years of age suffer from this disease. Causative agent of chicken pox is Varicella zoster. Its symptoms are red papules on skin, high fever, itching, aches and uneasiness. Small pox is an acute and highly communicable disease. It attacks infants and children. Its incubation period is approximately 12 days. Causative agent of small pox is Variola virus. Measles is an acute and highly contagious viral disease occurs primarily in children between 3-6 years of age. Its causative agent of measles is Rubeola virus. Its incubation period is 10-12 days. Conjunctiva of eye may also develop lesions thereby causing irritation. The disease subsides after three days, but it takes approximately 10 days for complete scaling. Mumps is a viral infection occurring in children of 5-12 years of age. It primarily affects the parotid glands. It spreads by: droplet infection and direct contact. Its incubation period varies from 14 to 21 days. Polio is an acute viral disease marked by the inflammation of nerve cells of the brain stem and spinal cord. Its incubation period is 7 to14 days. Hepatitis is also called Epidemic Jaundice. It is an acute communicable disease, which may be fatal. There are two causative agents of Hepatitis: Infectious hepatitis virus called Hepatitis A Virus and Serum hepatitis virus called Hepatitis B Virus. Influenza is a highly infectious disease. It is caused by Myxovirus influenza. Its symptoms are: sneezing, fever, coughing, discharge from nose and pain all over the body.

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