Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil.
Zoonoses Public Health. 2010 Dec;57(7-8):e26-32. doi: 10.1111/j.1863-2378.2009.01283.x.
Species of tegu (Tupinambis) are the largest lizards in South America. Large numbers of these lizards are hunted; there is a vigorous trade in their skins and the meat is consumed by rural and native peoples. The animals are also bred in captivity, an economic activity for rural populations which can help in the animals' conservation. Faecal samples from 30 captive-born tegus were analysed for the presence of Salmonella in two separate samplings. In the first analysis, samples from 26 animals (87%) yielded Salmonella enterica of which 23% were of Rubislaw serotype; 20% Carrau and Agona serotypes; 7% Infantis and Saint-Paul serotypes; 3% Panama and Brandenburg serotypes; 10% were S. enterica subsp. enterica and 7% were rough form. In the second analysis, four tegus (13%) which had been negative in the first sampling were positive, thus, 100% of the animals studied carried the bacterium. Antibiotic susceptibility showed resistance to sulfonamide in 82% of the isolates, streptomycin in 64%, tetracycline in 6% and Chloramphenicol in 20%. Two animals carried strains of the same serotype with different patterns of antibiotic susceptibility. Although it is well known that reptiles are a significant source of Salmonella, to our knowledge, its prevalence in tegu has not been studied previously.
巨蜥属（Tupinambis）物种是南美洲最大的蜥蜴。大量的这些蜥蜴被猎捕；它们的皮肤有活跃的贸易，肉被农村和土著人民消费。这些动物也在圈养中繁殖，这是农村人口的一项经济活动，可以帮助保护这些动物。对 30 只圈养出生的巨蜥的粪便样本进行了沙门氏菌检测，在两次单独的采样中均发现了沙门氏菌。在第一次分析中，26 只动物（87%）的样本中含有肠炎沙门氏菌，其中 23%为鲁比斯拉夫血清型；20%为卡劳和阿戈纳血清型；7%为婴儿和圣保罗血清型；3%为巴拿马和勃兰登堡血清型；10%为肠炎沙门氏菌亚种肠炎亚种，7%为粗糙型。在第二次分析中，在第一次采样中为阴性的四只巨蜥呈阳性，因此，研究的 100%的动物都携带了这种细菌。抗生素敏感性显示，82%的分离株对磺胺类药物有耐药性，64%对链霉素有耐药性，6%对四环素有耐药性，20%对氯霉素有耐药性。两种动物携带的菌株具有相同血清型但抗生素敏感性模式不同。尽管众所周知，爬行动物是沙门氏菌的重要来源，但据我们所知，以前没有研究过巨蜥中的沙门氏菌流行情况。
