Pathogens
Sources of infection:
Triangle of infectious diseases
Transmission routes:
People at high risk of infection
Environment
air contact vectors
Causes
Destroy the pathogens
Prevention
food
blood
Common symptoms
Prevent infectious diseases
Infectious diseases
Boost the immunity of
Block the transmission routes of pathogens
people at high risk of infection
Diseases
Non-infectious diseases
Healthy living habits
Prevention
cancer
Common symptoms
Causes
heart diseases
cancer
heart diseases
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