Bennett S G, Milazzo M L, Webb J P, Fulhorst C F
Orange County Vector Control District, Garden Grove, California 92843, USA.
Am J Trop Med Hyg. 2000 May;62(5):626-30. doi: 10.4269/ajtmh.2000.62.626.
The purpose of this study was to extend our knowledge on the geographic and natural rodent host ranges of New World arenaviruses in California. Sera from 1,094 sigmodontine and 112 murine rodents were tested for antibody against Whitewater Arroyo and Amapari viruses. Antibody was found in 55 (4.6%) of the 1,206 rodents: 4 from northwestern San Diego County, 3 from Los Angeles County, and 48 from Orange County. The antibody-positive rodents included 8 (7.8%) of 103 Neotoma fuscipes, 1 (0.6%) of 180 Neotoma lepida, 1 (3.1%) of 32 Peromyscus boylii, 8 (11.0%) of 73 Peromyscus californicus, 1 (1.2%) of 85 Peromyscus eremicus, 30 (8.5%) of 353 Peromyscus maniculatus, and 6 (2.2%) of 268 Reithrodontomys megalotis. This study provides the first evidence that New World arenaviruses occur in Los Angeles and Orange counties and northwestern San Diego County, and the first evidence that Peromyscus and Reithrodontomys species are naturally infected with New World arenaviruses.
本研究的目的是拓展我们对加利福尼亚州新大陆沙粒病毒地理分布范围和天然啮齿动物宿主范围的认识。对1094只棉鼠亚科啮齿动物和112只鼠科啮齿动物的血清进行了针对白水阿罗约病毒和阿马帕里病毒抗体的检测。在1206只啮齿动物中有55只（4.6%）检测到抗体：4只来自圣地亚哥县西北部，3只来自洛杉矶县，48只来自奥兰治县。抗体呈阳性的啮齿动物包括：103只褐林鼠中有8只（7.8%），180只淡褐林鼠中有1只（0.6%），32只博氏白足鼠中有1只（3.1%），73只加利福尼亚白足鼠中有8只（11.0%），85只荒漠白足鼠中有1只（1.2%），353只北美鹿鼠中有30只（8.5%），268只大林姬鼠中有6只（2.2%）。本研究首次证明新大陆沙粒病毒存在于洛杉矶县、奥兰治县和圣地亚哥县西北部，并且首次证明白足鼠属和林姬鼠属物种自然感染了新大陆沙粒病毒。
