粘膜泰国森林病毒感染导致鹿的疾病
Paige Fletcher1, Kyle L O'Donnell1, Joseph F Rhoderick1
1Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, Montana, United States of America.
PLoS pathogens
|October 13, 2025
概括
通过粘膜路径感染泰森林病毒 (TAFV) 的子发生了严重的疾病,与肌内接触不同. 野的粘膜TAFV感染可能会提供对埃博拉病毒 (EBOV) 的交叉保护.
科学领域:
- 病毒学 病毒学
- 传染性疾病 传染性疾病
- 动物模型 动物模型
背景情况:
- 泰国森林病毒 (TAFV) 是一种导致人类感染的细菌病毒.
- 自然的filovirus暴露可能通过粘膜路径发生,但动物模型通常使用肌内 (IM) 接种.
- 使用粘膜暴露开发TAFV小鹿模型对于了解病原性至关重要.
研究的目的:
- 通过肌内 (IM),鼻内 (IN) 和气溶途径开发和描述TAFV感染的病模型.
- 为了评估TAFV和埃博拉病毒 (EBOV) 之间的潜在交叉保护.
主要方法:
- 被通过IM,IN或气溶途径用TAFV接种.
- 经过TAFV感染的幸存者通过IM或IN路线重新接受了EBOV的挑战.
- 对疾病的严重程度,致死率和保护作用进行了监测.
主要成果:
- 鼻内和气溶TAFV接种导致中度至重度的疾病和部分致命性,而IM接种导致症状最小.
- 只有被TAFV内鼻接种并随后被EBOV内鼻接种的才受到疾病的保护.
- 其他子在重新挑战后屈服于EBOV感染,这表明交叉保护有限.
结论:
- 是评估TAFV病原性的合适动物模型,特别是通过粘膜暴露途径.
- 对TAFV的粘膜暴露可能会诱导对EBOV的交叉保护,但这种效应似乎取决于路线.
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