Potential pathogens in feces from unweaned Ilamas and alpacas with diarrhea
Potential pathogens in feces from unweaned Ilamas and alpacas with diarrhea
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DOI：
10.2460/javma.2003.223.1806
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发表时间：
2003-12-15
期刊：
影响因子：
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通讯作者：
Dearing, PL
中科院分区：
文献类型：
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作者：
Cebra, CK;Mattson, DE;Dearing, PL
目的：鉴定腹泻的美洲驼和羊驼粪便中的潜在病原体。设计：前瞻性观察研究。动物：45只腹泻的未断奶羊驼。程序：评价粪便样本中的艾美耳球虫属、贾第虫属、隐孢子虫属、肠道病毒和沙门氏菌属。一份问卷调查产生的信息有关牛群管理和存在的其他受影响camelids.Results-28 crias小于或等于31天的年龄，11个是32至62天的年龄，6个是63至210天的年龄。从45只鸡中的32只鸡的粪便中分离出潜在的病原体。共获得39种潜在病原体，包括冠状病毒（n = 19 crias; 42%），贾第鞭毛虫（8; 18%），艾美耳球虫属（6; 13%），隐孢子虫（4; 9%），轮状病毒（1; 2%）和线虫卵（1; 2%）。未分离出沙门氏菌属。大多数从其中分离出潜在病原体的crias是在涉及其他骆驼科动物的腹泻暴发期间被鉴定的，尽管在涉及成年骆驼科动物的暴发期间仅从所鉴定的crias中分离出冠状病毒。冠状病毒全年检测，而原生动物是最常见的分离在秋季和冬季。结论和临床相关性结果表明，各种潜在的病原体可能会从年轻的crias腹泻。许多骆驼会传播冠状病毒，这可能也影响了老年骆驼。原生动物最常在潮湿的月份分离，这表明在这些月份出生的crias可能有更多的接触原生动物病原体。
Objective-To identify potential pathogens in feces from llama and alpaca crias with diarrhea.Design-Prospective observational study.Animals-45 unweaned crias with diarrhea.Procedure-Fecal samples were evaluated for Eimeria spp, Giardia spp, Cryptosporidium spp, enteric viruses, and Salmonella slop. A questionnaire yielded information concerning herd management and presence of other affected camelids.Results-28 crias were less than or equal to 31 days old, 11 were 32 to 62 days old, and 6 were 63 to 210 days old. Potential pathogens were isolated from feces from 32 of the 45 crias. A total of 39 potential pathogens were obtained, including coronavirus (n = 19 crias; 42%), Giardia slop (8; 18%), Eimeria spp (6; 13%), Cryptosporidium slop (4; 9%), rotavirus (1; 2%), and nematode ova (1; 2%). Salmonella spp were not isolated. Most crias from which potential pathogens were isolated were identified during outbreaks of diarrhea involving other camelids, although only coronavirus was isolated from crias identified during outbreaks involving adult camelids. Coronavirus was detected throughout the year, whereas protozoa were most commonly isolated during the fall and winter.Conclusions and Clinical Relevance-Results suggest that a variety of potential pathogens may be isolated from young crias with diarrhea. Many crias shed coronavirus, which may also have been affecting older camelids. Protozoa were isolated most often during wetter months, suggesting that crias born during these months may have greater exposure to protozoal pathogens.