Dataset Information

Mpox Epidemiology and Risk Factors, Nigeria, 2022.

ABSTRACT: To investigate epidemiology of and risk factors for laboratory-confirmed mpox during the 2022 outbreak in Nigeria, we enrolled 265 persons with suspected mpox. A total of 163 (61.5%) were confirmed to have mpox; 137 (84.0%) were adults, 112 (68.7%) male, 143 (87.7%) urban/semi-urban dwellers, 12 (7.4%) self-reported gay men, and 3 (1.8%) female sex workers. Significant risk factors for adults were sexual and nonsexual contact with persons who had mpox, as well as risky sexual behavior. For children, risk factors were close contact with an mpox-positive person and prior animal exposure. Odds of being mpox positive were higher for adults with HIV and lower for those co-infected with varicella zoster virus (VZV). No children were HIV-seropositive; odds of being mpox positive were higher for children with VZV infection. Our findings indicate mpox affects primarily adults in Nigeria, partially driven by sexual activity; childhood cases were driven by close contact, animal exposure, and VZV co-infection.

SUBMITTER: Ogoina D

PROVIDER: S-EPMC11346979 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature

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Mpox Epidemiology and Risk Factors, Nigeria, 2022.

Ogoina Dimie D Dalhat Mahmmod Muazu MM Denue Ballah Akawu BA Okowa Mildred M Chika-Igwenyi Nneka Marian NM Oiwoh Sebastine Oseghae SO Tobin Ekaete Alice EA Yusuff Hakeem Abiola HA Ojimba Anastacia Okwudili AO Christian Umenzekwe Chukwudi UC Aremu John-Tunde JT Gomerep Simji Samuel SS Habila Kambai Lalus KL Awang Sati Klein SK Adekanmbi Olukemi O Iroezindu Michael M Onukak Asukwo A Falodun Olanrewaju O Sunday Mogaji M Johnson Simon Mafuka SM Olaitan Abimbola A Onyeaghala Chizaram C Alasia Datonye D Mmerem Juliet J Unigwe Uche U Kwaghe Vivian V Adeiza Mukhtar Abdulmajid MA

Emerging infectious diseases 20240810 9

To investigate epidemiology of and risk factors for laboratory-confirmed mpox during the 2022 outbreak in Nigeria, we enrolled 265 persons with suspected mpox. A total of 163 (61.5%) were confirmed to have mpox; 137 (84.0%) were adults, 112 (68.7%) male, 143 (87.7%) urban/semi-urban dwellers, 12 (7.4%) self-reported gay men, and 3 (1.8%) female sex workers. Significant risk factors for adults were sexual and nonsexual contact with persons who had mpox, as well as risky sexual behavior. For child ...[more]

PMID: 39127124

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Project description:Annual outbreaks of Lassa fever have resulted in a public health threat in Nigeria and other endemic countries in Sub-Saharan Africa. While the Lassa Virus (LASV) is endemic in rodent populations, zoonotic spillover to humans causes annual outbreaks. This study reviewed the burden of Lassa fever (LF) in Nigeria between 2020 and 2023 and conducted a cross-sectional survey of Nigerians to evaluate their risk perceptions of LF. During the period under review, 28,780 suspected and 4,036 confirmed cases of LF were reported from 34 of the 37 states of Nigeria. These cases resulted in 762 deaths (a CFR of 18.9%). The overall case positivity rate was 14% (4,036/28,780), with more positive cases in 2020 (17.5%, n = 1,189/6,791). A total of 2,150 study participants were enrolled in the prospective cross-sectional study, with most of them (87.5%, n = 1,881/2,150) having previously heard of Lassa fever (LF). The numerical scoring system revealed that 35.43% (n = 762/1,881) of those aware of LF have poor knowledge of its preventive measures, route of transmission, and control measures. Approximately 6.84% (n = 147/2,150) of them were at a high risk of contracting LF, with 27.6% (n = 584/2,150) of study participants feeling concerned about contracting LF because of the presence of rodents in their immediate vicinity, occupational exposure to healthcare workers, and the probability of contamination of food by infected rodents without necessary food safety measures. Multivariable logistic regression analysis revealed that tertiary education was associated with an increased likelihood of better LF knowledge (OR: 17.32; 95% CI: 10.62, 28.26; p < 0.01) and a lower risk of contracting LF when compared to respondents with no formal education. In addition, study participants who reside in low-burden states have lower LF perception than those residents in high-LF-burden states (OR: 0.59; 95% CI: 0.38-0.91; p = 0.049). On the other hand, study participants with poor risk perception (knowledge) of LF had a higher likelihood (RR: 0.33; 95% CI: 0.20, 0.53; p < 0.01) of contracting LF when compared to those with good knowledge of LF. Similarly, those residents in low LF burden states were less likely (OR: 0.09; 95% CI: 0.05,0.17; p < 0.01) to contract LF when compared to those residents in high burden states. There is a need to improve LF diagnostics capacity, infection prevention and control measures, and implementation of the One Health approach to controlling LASV from animal reservoirs. In addition, public enlightenment campaigns to address fundamental knowledge gaps are crucial to mitigating the ongoing and future impact of LF in Nigeria.

Dataset Information

Mpox Epidemiology and Risk Factors, Nigeria, 2022.

Publications

Mpox Epidemiology and Risk Factors, Nigeria, 2022.

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