Anaerobes Flashcards
what is an anaerobic bacteria
does not use oxygen to grow
Facultative anaerobe
Can grow in either o2 or non o2 environment
anaerobic infections are typically
polymicrobial
what are bacteroides
bile-resistant, nonspore forming , gram negative rods
bacteroides often implicated in
intra-abdominal infections
what causes intra-abdonminal infections
disruption of the instestinal cell wall
which species is associated with high mortality
B fragilis
Actinomyces is a
areotolerant, gram positive rod
What does actinomyces form
red to purple lump on the face and neck
what happeneds to the abscence of actinomyces
break through the skin and produce sinus tract
is actinomyces infection contagious ?
no
Clostridium tetani produce
neurotxin that spreads via CNS and causes spasms
Clostridium botulinum causes
paralysis due to the prevention of Ach release
where is c. botulinum found
improperly canned food that contain spores
c.perfringens cause
asymtopmatic or food poisoning