Infection Module Flashcards

1
Q

Infectious diseases

A

diseases caused by the invasion and multiplication of microorganisms in a hosts living cells

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2
Q

pathogens

A

microorganisms that have the ability to cause disease

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3
Q

adhesion factors

A

hair like or spike like structures that help microorganism attach to host cells

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4
Q

Invasive factors

A

assist the microorganism in penetrating anatomic barriers and host tissues

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5
Q

evasive factors

A

capsules, slime or mucous layers that protect the microorganisms against the hosts immune defences

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6
Q

antigenic drifts

A

minor alterations to the microorganisms appearance by changing surface antigens so they are not recognized by hosts immune system

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7
Q

antigenic shifts

A

major antigenic changes (occur less frequently in viruses)

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8
Q

Congenital infection

A

microorganisms transmitted to the fetus through the placental circulation of at the time of birth

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9
Q

endogenous infection

A

when an organism that normally colonizes a certain body system enters another body system

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10
Q

Exogenous infection

A

organisms from the outside environment infect the host

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11
Q

Nosocomial infections

A

infections transmitted in a hospital setting

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12
Q

incubation stage

A

infectious agent is actively replicating but host has no symptoms. Person can unknowingly spread the disease

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