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Jan 11, 2025Keywords:
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Main Article Content
The effectiveness of COVID-19 Heterologous Vaccination: the experience from a Regional Hospital in Cameroon
Abstract
Background: With most COVID-19 vaccines requiring at least 2 doses, heterologous vaccination will facilitate vaccination programs where vaccine supplies fluctuate. However, with insufficient data on effects of heterologous vaccination in our setting, people remain reluctant to mix.
Objectives: We seek to assess the effects of heterologous vaccination on morbidity and mortality.
Methods: This was a 7 months retrospective study for COVID-19 patients managed by the Bamenda Regional Hospital, Cameroon, running from the 18th August 2021 to 28th February 2022. Logistic regression used to asses relationship between predictors and outcome.
Results: Our 1254 participants had a mean age of 50.1(±19.6) years, we had 24 (1.9%) being fully vaccinated, where 7 (29.2%) took heterologous vaccines. Also, 721 (57.5%) had the moderate/severe form of the disease. Those fully vaccinated had lower odds of having severe disease (p=0.037). However, heterologous vaccination compared to homologous vaccination had no significant difference on morbidity (p=0.729). Among patients who died, none was fully vaccinated.
Conclusion: The protective effect of vaccination on morbidity was similar in those with heterologous vaccination as well as those who took
Keywords: COVID-19 vaccine; heterologous vaccination; homologous vaccination.
