Research Article

Mycobacteria in Terrestrial Small Mammals on Cattle Farms in Tanzania

Table 3

Mycobacteria detected in rodent and insectivores in and around Morogoro, Tanzania.

MycobacteriaaSmall mammal speciesDetected by PCR or culture

Human risk group 1c

M. duvalii***C. gambianusCulture
M. gordonaeA. albiventrisPCR
M. gordonae-likeC. gambianusPCR
M. gordonae-like**C. hirtaCulture
M. gordonae-likeC. hirtaPCR
M. gordonae-likeM. natalensisPCR
M. moriokaense*R. rattusCulture
M. mucogenicumM. natalensisPCR
M. nonchromogenicumC. hirtaCulture
M. nonchromogenicum* bR. rattusCulture
M. nonchromogenicum-likeM. natalensisCulture
M. nonchromogenicum-likeR. rattusPCR
M. sphagni-likeR. rattusPCR
M. terraeC. hirtaCulture
M. terrae***C. gambianusCulture
M. terraeR. rattusCulture

Human risk group 2c

M. chelonae var. niacinogenes M. natalensisPCR and culture
M. genavense-likeC. hirtaPCR
M. intracellulare***C. gambianusCulture
M. intracellulareC. hirtaCulture
M. intracellulareC. hirtaPCR and culture
M. intracellulareC. hirtaCulture
M. intracellulareM. natalensisPCR and culture
M. intracellulare-likeC. gambianusCulture
M. intracellulare-likeC. gambianusCulture
M. intracellulare-likeC. hirtaCulture
M. scrofulaceum-likeC. gambianusCulture
M. szulgaiM. natalensisPCR
MAISC. gambianusPCR and culture
MAISC. gambianusCulture
MAISC. hirtaPCR and culture

Recently described species, not yet classifiedc

M. alsiensisM. natalensisPCR and culture
M. chimaeraC. hirtaCulture
M. chimaera-likeC. hirtaCulture
M. colombienseC. hirtaPCR and culture
M. frederiksbergense-likeM. natalensisPCR
M. goodii* bR. rattusCulture
M. immunogenumR. rattusPCR
M. septicumA. albiventrisPCR
M. septicumM. natalensisPCR
M. septicumM. natalensisPCR

aā€‰*, ** and *** point out mycobacteria detected in the same group of animals but in different organs.
bThese mycobacteria were first detected in 2005 in R. rattus trapped on a farm and were later detected in 2006 in the milk of cattle residing on the same farm (see Table 6).
cThe classification in human risk groups is based on the clinical point of view in which human risk group 1 contain species that never or with extreme rarity cause disease. Human risk group 2 are species that normally live freely in the environment but also cause opportunistic infections in humans. Human risk group 3 are the obligate pathogens (M. tuberculosis complex and M. leprae) [52].