Abstract
An outbreak of caprine pleuropneumonia involving about 1200 goats in the Coast and Morogoro regions of eastern Tanzania is reported. The major clinical findings were severe respiratory distress, fever, mucopurulent nasal discharge and high mortality involving all age groups and both sexes of goats. The morbidity and mortality rates were 45%–90% and 14%–50%, respectively. The principal pathological lesions were confined to the thoracic cavity and comprised hydrothorax and serofibrinous pleuropneumonia. The histopathological features consisted of a necrotizing fibrinous pleuropneumonia characterized by different degrees of vasculitis, and fibrinocellular exudation into the alveolar septae and lumina, and into interlobular septae and pleura. Mycoplasma capricolum subsp. capripneumoniae, Mycoplasma mycoides subsp. mycoides, Small Colony type Mycoplasma ovipneumoniae and Mycoplasma arginini were isolated from some of the examined goats including a case with a sequestrum which yielded Mycoplasma mycoides subsp. mycoides, Small Colony type. This work reports the first description of an outbreak of caprine pleuropneumonia in Tanzania in which M. capripneumoniae and M. mycoides subsp. mycoides, Small Colony type were concurrently isolated.
Keywords: goat
Sammendrag
Et udbrud af caprin pleuropneumoni omfattende omkring 1200 geder i Coast og Morogoro regionerne i det østlige Tanzania er beskrevet. De fremherskende kliniske fund var alvolige respiratoriske problemer, feber, mukopurulent næsehuleudflåd og høj mortalitet i alle aldersgrupper hos både han- og hundyr. Morbiditeten og mortaliteten varierede fra henholdsvis 45% til 90% og 14% til 50%. De dominerende patologiske forandringer var begrænset til thoracal hulen og bestod i hydrothorax og serofibrinøs pleuropneumoni. De histopatologiske forandringer bestod i fibrinudsvedninger og cellulære migration til alveole lumina og septae samt til interlobulære septae og pleura. Mycoplasma capricolum subsp. capripneumoniae, Mycoplasma mycoides subsp. mycoides, Small Colony type Mycoplasma ovipneumoniae og Mycoplasma arginini, blev isoleret fra de undersøgte geder, og i eet tilfælde isoleredes Mycoplasma mycoides subsp. mycoides fra et sekvester. I dette arbejde beskrives for første gang et udbrud af caprin pleuropneumoni i Tanzania, hvor M. capripneumoniae og M. mycoides subsp. mycoides kunne isoleres simultant.
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