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Climatic-Determinants of Lassa Fever Cases In Ondo State Nigeria; A Retrospective Study (2018-2021)

  • Unique Paper ID: 167165
  • Volume: 11
  • Issue: 4
  • PageNo: 676-683
  • Abstract:
  • Introduction: Lassa fever is a public health disease and it is zoonotic in nature which is widespread in West Africa countries, including Nigeria and usually spark seasonal outbreak in some States in Nigeria, especially Ondo State. There exists paucity of information regarding climatic determinants of Lassa fever in Ondo State. Methods: Data on Lassa fever incidence and climatological variables in Ondo State within the period of January 2018 to June 2021 were obtained from the Department of Surveillance and Epidemiology, Nigerian Centre for Disease Control (NCDC) and National Centre for Environmental Prediction/ National Centre for Atmospheric Research (NCEP/NCAR) through the Nigeria Meteorological Agency (NIMET) respectively. Data collected were coded and entered into Microsoft excel spread sheet and analysed using R statistical software program and SPSS software program. Result: In order to determine association between Lassa fever incidence and climatological variables,a negative binomial regression model was used at 5% level of significance. We observed a peak periods of Lassa fever from our monthly trend of confirmed cases of Lassa fever in Ondo State, these peak periods spanned from the first to third month around January to March and the last two months of the year around November and December. We also observed from our charts of monthly trend of climatological variable in Ondo State that the temperature was high and the rainfall pattern, cloud cover and relative humidity decreased especially during the peak periods around January/February and November/December. Conclusion: The negative binomial model revealed that the relative humidity was significant associated (p < 0.05) with Lassa fever occurrence in Ondo State from 2018 to 2021. November through to March were peak periods for Lassa fever occurrence in Ondo State and monitoring the relative humidity, temperature and rainfall could serve as an early warning signs for the occurrence of Lassa fever in Ondo State.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 11
  • Issue: 4
  • PageNo: 676-683

Climatic-Determinants of Lassa Fever Cases In Ondo State Nigeria; A Retrospective Study (2018-2021)

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