Hi !!
Pathogens can be transmitted
- by blood
if you hurt yourself and have scratches or cuts, the pathogen can enter the body by blood. And with needle puncture (drug addicts) & Unprotected sex.
HIV/AID, sexually transmitted diseases, hepatitis
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-By air (through the nose)
cold, whooping cough, tuberculosis are spread this way.
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-By water and food. (non drinking water because dirty contaminated water, spoiled food, or being washed with non-drinking water
cholera, bacteria e.coli, salmonella
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by vectors such as mosquitoes
malaria for example
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