Background Human rabies remains a significant public health problem in Africa with outbreaks reported in most countries. In Nigeria–the most populous country in Africa–rabies causes a significant public health burden partly due to perennial obstacles to implementing a national prevention and control program. Methods We conducted a scoping review using standard Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to identify and select published articles from Nigeria during 1978–2020 reporting on rabies virus infections (human, canine, livestock, and wildlife), canine bites, knowledge, attitudes and practices (KAP) surveys on rabies and canine ecology studies. We extracted information on study location, year and additional details of each study such as rabies prevalence, general characteristics of offending dogs, dog vaccination status and health-seeking behaviours. Findings Between 1978 and 2020, 90 published articles met our inclusion criteria. The prevalence of rabies virus antigen detection varied between 3% and 28%, with more studies in the north. Most bites were unprovoked from dog bite studies (36.4%-97%), by dogs with low vaccination rates (12–38%). A more significant proportion of biting dogs were owned (31–90%). Laboratory confirmation for biting was available for only a small proportion of studies (6%; n = 2/32). Of the dogs surveyed during ecology studies, indigenous dogs accounted for the majority (62–98%), used mostly for security purposes (52–98%), with the vaccination rate between 15% and 38% in most states. Studies conducted in areas distant from rabies diagnostic facilities accounted for more human rabies cases and fewer dog rabies cases. Conclusion Significant improvements are necessary to achieve the elimination of human rabies mediated via dogs by 2030.
B ats are vital to many ecosystems and provide benefits to humans (1). However, under certain circumstances, bats may pose a risk to human health, as they host several zoonotic pathogens (2). Humans should therefore avoid bat contact unless appropriate precautions are taken. Among the most concerning batborne pathogens are viruses within the genus Lyssavirus. Previously unimmunized humans exposed to any of the >16 currently recognized and putative lyssaviruses (typically through a bite from an infected animal) will have 1 of 3 outcomes. First is a complete lack of any lyssavirus infection, characterized by the absence of both illness and lyssavirus-neutralizing antibody production. Second is a productive lyssavirus infection, characterized by a fatal encephalitis known as rabies (3). A human with rabies may produce lyssavirus-neutralizing antibodies in the end stages of illness as the disease progresses, although this response is typically inadequate for viral clearance (4). Third is an abortive lyssavirus infection (sometimes termed an exposure) characterized by the absence of frank encephalitis but with production of lyssavirus-neutralizing antibodies. Although
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