What are the different means by which infectious diseases are spread?
don't spam...
Answers
Answer:
direct transfer of bacteria, viruses and other germs from one person to another.
Answer:
Infectious diseases spread by different means. These are:
1. Through Air →An infected person when sneezes or coughs releases droplets containing germs. These droplets infect another healthy person through air and microbes enter a new body.
Example of such diseases are common cold, pneumonia and tuberculosis.
2. Through water→ if the water source is polluted by the excreta of infectious person having gut diseases and this water is used by others people they will be infected by diseases. For example, cholera, amoebiasis, hepatitis spread through water.
3. Through sexual contact →Some diseases like AIDS and syphilis, etc, are transmitted by sexual contact. Other than this, AIDS virus also spread through blood, infected syringes, infected mother to her baby during pregnancy and through breast feeding.
4. Through vectors →These are some animals which act as intermediary or vectors for a particular diseases. The vectors carry diseases from infected person to the healthy person.
For example mosquito spread malaria causing organism in humans, while sucking their blood