chapter 14 micro

Microbiome: Also known as Microbiota & Normal flora

-Organisms that colonize the body's surface without causing

-Microorganisms that live in & on the body

2 types -Resident Microbiota: Normal Microbiota throughout life; mostly commensal

-Transient Microbiota: Remain in body for short period. Found in same areas as resident.

-cannot persist in body b/c: competition from other microorganisms, elimination by the body's defense cells, chemical or physical body changes

- acquisition : development in womb

• development: during birthing process, first meals (human milk microbiota)medical Staff, parents (get their microbiota on baby)

• Resident microbiota established first few months of life

-opportunistic Pathogens: Normal Microbiota that cause disease under certain circumstances.

-conditions that provide opportunities: introduction of germ that you normal microbiota into unusual body site, immune suppression, Changes in normal Microbiota, Stressful conditions

-Most pathogen can’t survive for long outside their host

(1)Animal reservoir

-Zoonoses: disease naturally spread animal human

-aquired through: direct contact with animal or its Waste, eating animal, blood sucking arthropods

-human normally dead-end host /does not spread;

-ex: disease -Animal-how

Helminthic: tapeworm-dog-larvae transmitted in dog Saliva

~ protozoan: Malaria-Monkeys -Mosquitobite (plasmodium)

-fungal: Ringworm-domestic Animals-direct Contact.

~ Bacterial: Plaque-Rodents -Flea bites

-viral: Rabies-bats/Skunks/foxes /dogs-bite.