Impact and projections of the COVID-19 epidemic on attendance and routine vaccinations at a pediatric referral hospital in Cameroon - 15/06/21

Doi : 10.1016/j.arcped.2021.05.006

D. Chelo ^a,^b,⁎ , F. Nguefack ^b, D. Enyama ^c, R. Nansseu ^d, G. Feudjo Tefoueyet ^d, H.D. Mbassi Awa ^a,^b, I. Mekone Nkwelle ^b, G. Nguefack-Tsague ^d, P. Ndenbe ^b, P.O. Koki Ndombo ^a,^b
^a Mother and Child Center Chantal BIYA Foundation, Yaoundé, Cameroon
^b Department of Pediatrics, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon
^c Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon
^d Department of Public Health, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon

^⁎Corresponding author at: Mother and Child Center, Chantal BIYA Foundation, Henry Dunant Street, P.O. Box 1936, Yaoundé, Cameroon.Mother and Child Center, Chantal BIYA FoundationHenry Dunant Street, P.O. Box 1936YaoundéCameroon

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Abstract

Background

At the beginning of March 2020, Cameroon experienced its first cases of infection with the new coronavirus (SARS-COV-2). Very quickly, there was a drop in the rate of hospital attendance. The purpose of this study was to observe the variations in the uptake of pediatric consultations and vaccinations in a pediatric hospital.

Methods

A descriptive and retrospective cross-sectional study was carried out using consultation and vaccination statistics from a pediatric hospital in the city of Yaoundé, political capital of Cameroon, from January 2016 to May 2020. Data were entered in Microsoft Excel and exported to R software (Version 3.3.3) for statistical analysis. First, time series raw data (before and after COVID-19) were plotted and the trend estimated by locally weighted scatterplot smoothing (LOWESS) methods. Then a classic seasonal decomposition was performed to distinguish between seasonal trends and irregular components using moving averages. The Webel–Ollech overall seasonality test (WO test) was also run to formally check for seasonality. The results of the study are presented as narrative tables and graphs.

Results

Following the partial confinement recommended by the government of Cameroon, the number of pediatric consultations decreased by 52% in April and by 34% in May 2020 compared with rates during the same periods in 2019 (P=0.00001). For antenatal visits, the rates dropped by 45% and 34%, respectively, in April and May 2020 compared with 2019. The demand for immunization services also declined. As a result, the demand for BCG vaccines, third-dose tracer vaccines (diphtheria, tetanus, pertussis), polio, and MMR in children as well as tetanus vaccines in childbearing women dropped significantly.

Conclusion

The start of the COVID-19 pandemic was accompanied by a significant drop in consultation and vaccination activities. If no action is taken to correct this phenomenon, the ensuing months could be marked by a considerable increase in patients, sometimes suffering from vaccine-preventable diseases. The death rate could increase considerably in the pediatric population.

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Keywords : COVID-19, Consultation, Vaccination, Children, Yaoundé