What is infectious disease?
What are kinds of pathogens?
How does transmission of infectious disease occur?
And Meningitis are commonly acquired by contact with aerosolized droplets, spread by sneezing, coughing & talking
Are often acquired by ingesting contaminated food and water
Sexually transmitted diseases
Are acquired through contact with bodily fluids, generally as a result of sexual activity
Some infectious agents
Some infectious agents may be spread as a result of contact with a contaminated, inanimate object, such as a coin passed from one person to another, while other diseases penetrate the skin directly
Transmission of infectious diseases may also involve a "vector".
What does vector mean?
Picks up infectious agent on the outside of its body and transmits it in a passive manner. E.g. Housefly
Harbor pathogens within their bodies and deliver pathogens to new hosts in an active manner, usually a bite are often responsible for serious blood-borne diseases, such as malaria, viral encephalitis, such as mosquitoes, ticks, fleas and lice.