Medical Microbiology

226 3 GeneralBacteriology

Table3. 9 Continued:OverviewoftheMedicallyMostImportantBacteria

Family

Genus,species

Characteristics Clinical

manifestations

Continued:Section9.

Streptobacillusmonili-

formis(belongsnew

toFusobacteriaceae)

Normalflorainrats,

mice,andcats

Rat-bitefever

(alsocausedbySpirillum

minus(=Sodoku)

Section 1 0.Aerobic/microaerophilic,motile,helical/vibrioidGram-negative

rodbacteria

Campylobacteriaceae Thin,helical,andvibrioid,

culturable

Campylobacterjejuni Animalpathogen Enteritis

Campylobacterfetus Opportunisticinfections:

sepsis,endocarditis

“Helicobacteriaceae”

Helicobacterpylori Helical,culturingdifficult,

produceslargeamounts

ofurease

TypeBgastritis,peptic

ulcersofstomachand

duodenum

Section 11 .TheSpirochetes.Gram-negative,helicalbacteria

Spirochaetaceae Helical,motile,thin

Treponemapallidum Onlyinhumans,not

culturable

Syphilis,threestages

Borreliaburgdorferi

B.afzelii

B.garinii

Tickborne,culturable Lymedisease,threestages

Borreliaduttonii

Borreliahermsiiand

furtherspecies

Tickborne,antigen

variability

Endemicrelapsingfever

Borreliarecurrentis Transmittedbybodylice Epidemicrelapsingfever

Leptospiraceae Helical,motile,culturable

Leptospirainterrogans Serogroupsandserovars

(e.g.,icterohemorrhagiae,

pomona,grippotyphosa,

etc.)

Leptospirosis,morbusWeil

3

Kayser, Medical Microbiology © 2005 Thieme