Seroepidemiological investigation of Crimean Congo hemorrhagic fever virus in livestock in Uganda, 2017

被引:5
|
作者
Nyakarahuka, Luke [1 ,2 ]
Kyondo, Jackson [1 ]
Telford, Carson [3 ]
Whitesell, Amy [3 ]
Tumusiime, Alex [1 ]
Mulei, Sophia [1 ]
Baluku, Jimmy [1 ]
Cossaboom, Caitlin M. [3 ]
Cannon, Deborah L. [3 ]
Montgomery, Joel M. [3 ]
Lutwama, Julius J. [1 ]
Nichol, Stuart T. [3 ]
Balinandi, Stephen K. [1 ]
Klena, John D. [3 ]
Shoemaker, Trevor R. [3 ]
机构
[1] Uganda Virus Res Inst, Dept Arbovirol Emerging & Reemerging Infect Dis, Entebbe, Uganda
[2] Makerere Univ, Coll Vet Med Anim Resources & Biosecur, Dept Biosecur Ecosyst & Vet Publ Hlth, Kampala, Uganda
[3] United States Ctr Dis Control & Prevent, Viral Special Pathogens Branch, Div High Consequence Pathogens & Pathol, Atlanta, GA USA
来源
PLOS ONE | 2023年 / 18卷 / 11期
关键词
RISK-FACTORS;
D O I
10.1371/journal.pone.0288587
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Crimean-Congo Hemorrhagic fever (CCHF) is an important zoonotic disease transmitted to humans both by tick vectors and contact with fluids from an infected animal or human. Although animals are not symptomatic when infected, they are the main source of human infection. Uganda has reported sporadic human outbreaks of CCHF in various parts of the country since 2013. We designed a nationwide epidemiological study to investigate the burden of CCHF in livestock. A total of 3181 animals were sampled; 1732 cattle (54.4%), 1091 goats (34.3%), and 358 sheep (11.3%) resulting in overall livestock seropositivity of IgG antibodies against CCHF virus (CCHFV) of 31.4% (999/3181). Seropositivity in cattle was 16.9% and in sheep and goats was 48.8%. Adult and juvenile animals had higher seropositivity compared to recently born animals, and seropositivity was higher in female animals (33.5%) compared to male animals (24.1%). Local breeds had higher (36.8%) compared to exotic (2.8%) and cross breeds (19.3%). Animals that had a history of abortion or stillbirth had higher seropositivity compared to those without a history of abortion or stillbirth. CCHFV seropositivity appeared to be generally higher in northern districts of the country, though spatial trends among sampled districts were not examined. A multivariate regression analysis using a generalized linear mixed model showed that animal species, age, sex, region, and elevation were all significantly associated with CCHFV seropositivity after adjusting for the effects of other model predictors. This study shows that CCHFV is actively circulating in Uganda, posing a serious risk for human infection. The results from this study can be used to help target surveillance efforts for early case detection in animals and limit subsequent spillover into humans.
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页数:13
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