Microbio Flashcards
what colour would you expect to see in a positive gram stain?
purple
what colour would streptococcus show on gram stain?
purple
what colour would staphylococcus show on gram stain?
purple
which a haemolytic strep is sensitive to optochin?
s.pneumoniae
what is the macroscopic appearance of streptococcus?
chains of cocci
what is the macroscopic appearance of staphylococcus?
clusters of cocci
which organism is the most likely cause of a skin abscess?
s.aureus
what is the most likely source of salmonella enterica?
eggs, poultry
what colour would salmonella enterica stain on gram stain?
pink
what is the most likely source of salmonella typhi?
waterborne, canned meat, shellfish
which antibiotic would you give for salmonella typhi?
ciprofloxacin
how is shigella sonnei spread?
faeco oral route`
what is the macroscopic appearance of campylobacter jejuni?
spirally curved bacillus
what is a common source of campylobacter jejuni?
uncooked chicken
what symptoms may someone infected by campylobacter jejuni present with?
abdo cramps, bloody diarrhoea, fever
what is the appearance of helicobacter pylori?
spiral bacillus
what is the commonest cause of gastroenteritis in infants worldwide?
rotavirus
which bacterium is the most likely cause of gastritis or stomach ulcers?
h.pylori
which bacteria are the most likely cause of enteric fever?
salmonella typhi and paratyphi
what is another name for enteric fever?
typhoid fever
what bacteria is a common cause of antibiotic associated diarrhoea?
clostridium difficile
what are two common protozoal causes of diarrhoea?
cryptosporidium, giardia
