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
