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There thousands that are passed from one person to another. Another name for them is infectious diseases.
diseases are classified into various subtypes depending upon different parameters like basing upon casuative agent into bacterial, viral disease etc.based upon mode of spread it is classified into contagious and non contagious disease. Contagious disease is one which spreads from one person to another person. This spread may occur through mosquito or coughing etc.
Communicable or Contagious.
Prevention of infectious diseases when vaccines are available for them. There are vaccines available for many viral and some bacterial contagious diseases.
Germs that spread from person to person to cause diseases are contagions.People who are then infected with the germ, only during the active phase of the germ's "life", are then referred to as being contagious.
contagious diseases speared in many ways while anybody is eating the bacteria spread in air while coughing the bacteria enter in to air the bacteria goes to another person like these the contagious diseases spread
No, mental diseases are not contagious at all.
diseases are classified into various subtypes depending upon different parameters like basing upon casuative agent into bacterial, viral disease etc.based upon mode of spread it is classified into contagious and non contagious disease. Contagious disease is one which spreads from one person to another person. This spread may occur through mosquito or coughing etc.
Both bacterial infections and viral infections can be contagious or not contagious. Some viral infections are not spread from human to human or are only rarely spread that way. TB is a contagious bacterial infection.
Some diseases can be contagious because of the bacteria is in germs in the air
There are more than three contagious diseases. The top three contagious diseases are flu, HIV and Ebola.