Slower population growth is not a reason for communicable diseases such as pneumonia, kill fewer people today than they did in the past.
Further Explanation:
Communicable disease is the one that is spread from one individual to another individual through contact such as blood transfusion, bodily fluid and by breathing in air borne virus and insect bite. They are caused by microorganism which has harmful effect on body immune system such as bacteria, viruses, parasites and fungi.
A variety of disease producing bacteria and viruses are carried by the mouth, nose, throat and respiratory tract. The disease like leprosy, tuberculosis and influenza are transferred through coughing, sneezing, saliva and mucus. A number of communicable diseases are,
1. Influenza: it is also known as flu virus which is a contagious respiratory illness. It is spread through cough, sneeze and talk.
2. Tuberculosis: it is caused by mycobacterium tuberculosis and it mainly infects the lungs. It is spread through cough, talk and sneezing.
3. Hepatitis B: This virus infects the liver cell which can cause fatal liver conditions such as cirrhosis, liver failure and liver cancer. It is a sexually transmitted disease.
4. Hepatitis C: According to CDC, this is the most occurring chronic blood borne infection in the U.S which spread through direct blood contact such as skin puncture. No vaccine is available for this virus. It is a sexually transmitted disease.
5. HIV: This virus cause AIDS which weaken the immune system of an individual and make it difficult for an infected person to resist other illnesses. It is a sexually transmitted disease.
Learn More:
1. Learn more about the fibrous skeleton of the heart
2. Learn more about blood cells bring oxygen and take carbon dioxide away
3. Learn more about the system prepares food for absorption into the bloodstream
Answer Details:
Grade: Senior School
Subject: Health
Chapter: Communicable Disease
Keywords:
Communicable disease, blood, transfusion, air borne virus, microorganism, bacteria, influenza, hepatitis B, hepatitis C, HIV, AIDS, leprosy, tuberculosis.
