Contagious diseases (such as the flu, colds, or strep throat) spread from person to person in several ways.
One way is through direct physical contact, like touching or kissing a person who has the infection.
Another way is when an infectious microbe travels through the air after someone nearby sneezes or coughs.
How are infectious diseases spread?
Person to person. Infectious diseases commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another. This can happen when an individual with the bacterium or virus touches, kisses, or coughs or sneezes on someone who isn’t infected.
What are contagious diseases?
A contagious disease is a subset category of transmissible diseases, which are transmitted to other persons, either by physical contact with the person suffering the disease, or by casual contact with their secretions or objects touched by them or airborne route among other routes.
What are three ways in which communicable diseases can be spread?
Some ways in which communicable diseases spread are by:
- Physical contact with an infected person, e.g. through touch (staphylococcus), sexual contact (gonorrhoea, HIV), faecal/oral transmission (hepatitis A), or droplet (influenza)
- Contact with a contaminated surfaces or objects (Norovirus), food (salmonella, E.
What are communicable diseases and how do they spread?
Communicable, or infectious diseases, are caused by microorganisms such as bacteria, viruses, parasites and fungi that can be spread, directly or indirectly, from one person to another. Some are transmitted through bites from insects while others are caused by ingesting contaminated food or water.