Mycobacterium abscessus Causes rapid-growing
Nontuberculous Mycobacteria (NTM) lung disease in humans. It can also infect
wounds and damage the skin. It most commonly causes fibronodular
bronchiectasis (Field & Cowie 2006) - don't know what its prevalence is in
southern Africa. |
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Mycobacterium aubagnense Recorded from South African
soil samples by Lukusa (2009). |
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Mycobacterium austroafricanum First described from
South Africa where it was isolated from a water sample (Tsukamura et al.
1983). It has since been found that there is a strain of
Mycobacterium austroafricanum that breaks down the chemical methyl
tert-butyl ether (otherwise abbreviated as MTBE) by using it as a carbon and
energy source. MTBE is added to gasoline to increase the octane
index and improve emission quality. However, it is soluble in water and can
become a serious pollutant, especially as it is suspected as a human
carcinogen (Ferreira et al. 2006). Petroleum-contaminated soils
have been found to contain Mycobacterium austroafricanum (cited in
Lukusa 2009). Rubrivivax gelatinosus
and Hydrogenophaga have also been found to break down MTBE. |
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Mycobacterium avium complex (MAC) Members of this
complex infect a range of birds and mammals, including humans (particularly
HIV immunosupressed individuals). MAC is the most common form of
slow-growing Nontuberculous Mycobacteria (NTM) lung disease in humans (Field
& Cowie 2006). Infection can be through residential water sources
(including drinking water, swimming pools, hot tubs) and from soil (Lukusa
2009). |
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Mycobacterium boenickei Occurs in soil, dust and
water and can infect humans with a variety of symptoms that include skin and
soft tissue abscesses, lung disease, and inflammation of various organs,
including meningitis. |
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Mycobacterium botniense Recorded from natural
surface water streams in Finland (cited in Lukusa 2009) - don't know what
its prevalence is in southern Africa. |
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Mycobacterium chelonae Causes rapid-growing
Nontuberculous Mycobacteria (NTM) disease in humans, normally in the form of
skin and soft-tissue infections, rarely causing lung disease (Field & Cowie
2006). Very resistant to antibiotics and disinfectants. Recorded from public
swimming pools in Italy (cited in Lukusa 2009). |
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Mycobacterium chlorophenolicum Recorded from
petroleum-contaminated soil (cited in Lukusa 2009). |
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Mycobacterium chubuense Recorded from soil in Japan
(cited in Lukusa 2009). |
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Mycobacterium flavescens Recorded from
petroleum-contaminated soil (cited in Lukusa 2009). |
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Mycobacterium fortuitum Causes rapid-growing
Nontuberculous Mycobacteria (NTM) disease in humans, normally in the form of
skin and soft-tissue infections, frequently in postsurgical wounds, but also
causes lung disease (Field & Cowie 2006). Found in water (including
public drinking sources and swimming pools) and soil. Recorded from South
African soil samples by Lukusa (2009). |
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Mycobacterium frederiksbergense Recorded from soil
in Japan (cited in Lukusa 2009). |
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Mycobacterium gastri Typically found in the stomach
but can be located in other parts of the human body. Also found in the soil. |
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Mycobacterium gordonae Widely distributed in the
environment and frequently found in tap water and swimming pools (cited in
Lukusa 2009). However, it is rarely
implicated as a slow-growing Nontuberculous Mycobacteria (NTM) lung disease. |
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Mycobacterium immunogenum Associated with Nontuberculous Mycobacteria (NTM) lung disease
in humans (cited in Lukusa 2009). |
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Mycobacterium intracellulare Found in soil and water
and also infects animals, including humans. Chege et al. (2008)
record infections in
Papio ursinus (Chacma baboon) in South Africa. |
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Mycobacterium kansasii Often found in tap water,
particularly in urban areas. Causes slow-growing Nontuberculous Mycobacteria
(NTM) lung disease in South African gold miners (Field & Cowie 2006). The
source of the disease among these miners is probably from the water supply,
particularly from shower heads used by the miners (Kwenda 2010). |
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Mycobacterium leprae Causes leprosy (Hansen's
disease) in humans. |
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Mycobacterium lepraemurium Causes a disease in rats
and is also responsible for feline leprosy. Presumably encountered in
southern Africa. |
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Mycobacterium mageritense Recorded from soil in
Japan (cited in Lukusa 2009). |
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Mycobacterium malmoense Causes slow-growing
Nontuberculous Mycobacteria (NTM) lung disease in humans - don't know what
its prevalence is in southern Africa. |
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Mycobacterium manitobense Recorded from soil in
India (cited in Lukusa 2009). |
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Mycobacterium marinum A free-living bacterium that
sometimes causes infections in humans, typically in the form of superficial
nodules or papules on the skin. These are usually located on extremities
such as elbows where body temperature is lower as growth of this bacterium
is inhibited at higher temperatures. Aquarium owners are susceptible to
infection as are people who swim in poorly constructed and maintained
swimming pools. Recorded from public swimming pools in Italy (cited in
Lukusa 2009). |
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Mycobacterium montefiorense Causes a skin disease in
Moray eels (Muraenidae). |
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Mycobacterium mucogenicum Recorded from public
drinking sources such as ice machines and water treatment plants. Recorded
from South African water samples by Lukusa (2009). |
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Mycobacterium palstre One of the species associated
with Non-Tuberculosis (NTM) lung disease in humans (cited in Lukusa 2009). |
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Mycobacterium scrofulaceum (Scrophula bacillus) The
most common cause in children of cervical tuberculous lymphadenopathy or
scrofula, the main symptom of which is inflamation of the cervical lymph
nodes, which results in large unsightly abscesses on the neck.
Mycobacterium scrofulaceum can be found in drinking water - for instance
a study in Taiwan found it in hospital drinking water (cited in Lukusa
2009). Scrophula in
adults is mainly caused Mycobacterium tuberculosis. |
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Mycobacterium simiae Recorded from hospital drinking
water in Taiwan (cited in Lukusa 2009). One of the species associated with
Non-Tuberculosis (NTM) lung disease in humans (cited in Lukusa 2009). |
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Mycobacterium smegmatis Recorded from South African
soil samples by Lukusa (2009). |
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Mycobacterium szulgai Recorded from hospital
drinking water in Taiwan (cited in Lukusa 2009). One of the species
associated with Non-Tuberculosis (NTM) lung disease in humans (cited in
Lukusa 2009). |
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Mycobacterium terrae (Radish bacillus) Common name
arises from the fact that it was first isolated from radish washings. Found
in the soil and can, uncommonly, infect humans, usually people working with
soil where Mycobacterium terrae probably gains entry through a wound
in the hand. Infection most commonly results in tenosynovitis (inflammation
of the fluid-filled sheath that surrounds a tendon) in the hand. It can also
infect the lungs, causing a cavitary process and a granuloma (Smith et
al. 2000). Presumably occurs in southern Africa. |
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Mycobacterium tuberculosis complex (MTBC)
Members of this complex cause tuberculosis in animals,
including humans. |
|
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Mycobacterium bovis Causes tuberculosis in cattle
and can also cause tuberculosis in humans (although Mycobacterium
tuberculosis is the main causative agent in the latter case). A live
attenuated strain was developed as a vaccine against tuberculosis by
Calmette and Guérin and first used in humans in 1921. It is called Bacillus
Calmette-Guérin (BCG) and has been used ever since as the primary vaccine
against tuberculosis although it is not entirely effective. |
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Mycobacterium caprae Causes tubercolosis in sheep
and goats - not sure if it has been recorded from southern Africa. |
|
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Mycobacterium "dassie bacillus" Causes tuberculosis
in
Procavia capensis (Rock hyrax, Dassie). Research by Parsons et
al. (2008) suggests high infection rates in some populations. |
|
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Mycobacterium pinnipedii Causes tuberculosis in
seals. Not sure if it has been recorded from southern Africa. |
|
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Mycobacterium tuberculosis The main cause of human
tuberculosis. The incidence of tuberculosis in South Africa is one of the
highest in the world with over 400 000 reported cases per year (see
tbsouthafrica.org).
For more on tuberculosis, see
Wikipedia. |
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Mycobacterium ulcerans Found in natural waters,
soil, insects (including gerrid water bugs and mosquitoes), wild animals and
fish (cited in Lukusa 2009). Causes infection of subcutaneous (under the
skin) fat in humans, followed by ulceration of the skin, in a disease termed
Buruli ulcer. This disease is particularly common in West Africa and there
are also localised outbreaks in Victoria, Australia. I can find no
references to it occurring in South Africa but presumably there have been a
few cases. Buruli ulcer is the third most prevalent Mycobacterium
disease globally after tuberculosis and leprosy. See
Wikipedia and
WHO Buruli
ulcer: progress report, 2004–2008 for more. |
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Mycobacterium vaccae A non-pathogenetic species that
naturally occurs in the soil. There have been trials using dead
Mycobacterium vaccae for immunotherapy against tuberculosis - results
have been mixed with trials in South Africa not bearing positive results
(Stanford et al. 2004). |
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Mycobacterium vanbaalenii Recorded from soil in
Japan (cited in Lukusa 2009). |
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Mycobacterium xenopi Causes slow-growing
Nontuberculous Mycobacteria (NTM) lung disease in humans. Recorded from
natural surface water streams in Finland (cited in Lukusa 2009) - don't know what
its prevalence is in southern Africa. |
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