Module 1 Study Quizzes - Microbiology

The greatest danger for getting COVID-19 from going to a hairdresser or salon is ______ ?

close contact to others

The change in the doctors behavior that Semmelweis had them do resulted in

dramatic decline in rate of illness and death that = midwife death

To catch coronavirus from hair the virus would have to travel from the hair to ________ to ________.

hands to mucosal membrane

Comparing the microbial population on the left hand with those on the right hand showed...

left hand and right hand on the same person had different species

What differences did he observe between the doctor's/med student's obstetrics clinic and the midwive's clinic in his hospital?

much lower death rate in midwife's clinic

What natural substance would limit the time that coronavirus could survive on hair?

natural oils from the scalp

Ignaz Semmelweis was trained as a ___________________ and went to work in an Austrian hospital around the year __________ .

physician, 1847

What "activities" in the clinics did Semmelweis study to see if they might be the cause of the illness?

ringing of religious bells in clinic or position of women while giving birth

What factors could affect the difference in numbers and diversity of bacteria on the test subjects hands?

skin thickness, differences in male/female hormones, sweat and oil gland secretion, use of skin products like moisturizers

Semmelweis ruled out those activities and finally concluded that what was being transmitted to the mothers in the clinic by the male doctors and med students ?

something on hands/clothing from dissecting cadavers or autopsies of patients who died from illness

What type of ingredient in shampoo would have strong anti-coronavirus activity?

the surfactants

What did Semmelweis have the doctors do to limit the spread of the disease among the new mothers?

washing hands with chlorine product

What best describes the number of different bacteria the microbiologists found on the test subjects hands?

women's hands had greater diversity of material species than men's hands

We now know that the microorganism being spread in the doctor's clinic that causes puerperal fever (and many other human diseases!) is

Group A streptococci (Streptococcus pyogenes)

How long is it estimated, according to NIH research, that coronavirus can survive on stainless steel or plastic surfaces?

2-3 days

What method was used to determine the microbe population on hands?

DNA gene sequencing of the bacteria from palms

Because of the success of Semmelweis' remedy to the spread of the illness in the doctor's clinic and the significant saving of lives, his reward was

belittled, insulted, mocked for making them wash their hands and fired