11_Microbe-Human Interactions

The Human Microbiome Project (HMP) confirmed that various areas of the body had bacteria living there by testing for:

• Bacterial DNA or RNA

• Bacterial toxins

• Peptidoglycan

• Pure cultures of bacteria

After the HMP, which site was shown to contain bacteria when we previously thought they were sterile? Check ALL that apply:

• Skin

• Upper Respiratory Tract

• Breastmilk

• Eyes

No, you can't share my mascara I don't want you to ______________ it.

• contaminate

• infect

• colonize

• steal

The interval between infection and appearance of symptoms of disease is known as

• Penetration

• Infection period

• inoculation

• incubation period

Tetanus results from a toxin secreted by Clostridium tetani that causes muscle contraction/spasm. This is an example of an:

• endotoxin

• exotoxin

• endogenous infection

• endospore

Clostridium tetani is found in soil and it usually enters the body via a wound. We would say tetanus is commonly contracted from:

• vertical transmission

• human carriers

• a nonliving reservoir

• fomites

One of the complications in preventing the transmission of SARS-CoV-2 is that people who are infected:

• all show symptoms within 48 hours of infection

• are not reservoirs of the virus

• can be asymptomatic carriers of the virus

• suffer inflammation from the endotoxins

An unexpected characteristic of COVID-19 is that it:

• affects older adults more seriously

• is more worrisome for those with diabetes

• is not more virulent in infants or young children

• is riskier for those with asthma or COPD

SARS-CoV-2 is an opportunistic pathogen.

• True

• False

For the majority of people infected by SARS-CoV-2 the infection is:

• acute

• chronic

• viremia

• latent