20 Questions
Which species of Gram positive bacilli is motile?
B.anthracis
Which of the following is NOT a characteristic used to classify Gram positive bacilli?
All of above
What type of colonies does B.anthracis produce on blood agar?
Non-hemolytic colonies
Which type of anthrax is caused by inhalation of spores?
Pulmonary anthrax
What is the cardinal feature of cutaneous anthrax?
Painless swelling
Which of the following is the most effective decontamination solution for spills involving material suspected to be contaminated with B. anthracis?
0.5% hypochlorite solution
Which of the following stains is NOT used for the laboratory diagnosis of anthrax?
Not of above
Which of the following is the correct treatment regimen for cutaneous anthrax?
Ciprofloxacin 500mg BD for 7 days
Which of the following vaccines is effective in animals?
Sterne's
Which of the following is the correct minimum infective dose for inhalational anthrax?
8,000-10,000
Which of the following is NOT a characteristic used to classify Gram positive bacilli?
Cell morphology and arrangement
Which of the following is the correct habitat for Bacillus species?
Saprophytes
Which of the following is the correct mode of transmission for cutaneous anthrax?
Contact with spores or spore contaminated materials
Which of the following is the correct incubation period for cutaneous anthrax?
1-7 days
Which of the following is the correct clinical feature of cutaneous anthrax?
Painless swelling
Which of the following is the correct method for handling laboratory specimens suspected to be contaminated with B. anthracis?
Perform lab tests in a Class II Biological Safety Cabinet
Which of the following is the correct decontamination solution for spills involving fresh clinical samples contaminated with B. anthracis?
0.5% hypochlorite solution
Which of the following is the correct treatment regimen for inhalational anthrax?
Ciprofloxacin 500mg BD for 60 days
Which of the following is the correct vaccine for high-risk individuals against anthrax?
Michigan AVA (BioportR) vaccine
Which of the following is the correct method for decontamination of spills involving lab samples contaminated with B. anthracis?
Gently cover spill and soak for one hour
Test your knowledge on the general characteristics of Gram-positive bacilli including cell morphology, atmospheric needs, catalase production, and spore formation. Discover different genera and species, such as Bacillus, and their habitats and potential as human pathogens.
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