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INFECTION AND RESPONSE: PATHOGENS AND DISEASE (PATHOGENS AND DISEASE (can…
INFECTION AND RESPONSE: PATHOGENS AND DISEASE
VIRAL PATHOGENS
viruses live and reproduce rapidly inside body cells, causing cell damage
measles
caused by a virus
symptoms: fever and red skin rash
spread by inhalation of droplets from sneezes and coughs
prevention: vaccination
HIV
caused by a virus
spread by sexual contact or exchange of bodily fluids
symptoms: flu
viruses can also cause plant diseases
BACTERIAL DISEASES
bacteria may damage cells directly or produce toxins
PROTISTS AND DISEASE
FUNGAL DISEASES
KEY WORDS
PATHOGENS AND DISEASE
microorganisms that cause infectious (communicable) diseases
viruses, bacteria, protists, fungi
may infect plants or animals
can be spread by:
direct contact
water
air
vectors
spread of infectious diseases can be reduced by:
simple hygiene measures
destroying vectors
isolation
vaccination