SARS-CoV-2 seroprevalence among healthcare workers in Haiti, December 2021

Abstract

Abstract Background Healthcare workers are an exposed group for SARS-CoV-2 and this exposure is a public health priority. Transmission can occur from infected patients to staff and from infected staff to patients and co-workers, thus undermining the health care system. This study estimated the seroprevalence in this population and identified some associated factors. Methods We analyzed the exposure of healthcare workers in ten (10) large hospitals providing care to patients with covid-19 by testing for antibodies to SARS-CoV-2. Potential risk factors such as age, vaccination history, barrier measures such as masking were explored through a questionnaire. Results From December 06 to 15, 2021, among 3743 health care workers in major hospitals providing care to patients with covid19, a sample of 566 had received serological testing for SARS-COV-2. The mean age was 39 years, 62% were female, and about 12% had hypertension. The vast majority did not reveal any signs and symptoms compatible with COVID19, 62% had already received anti-covid19 vaccine. The national prevalence regardless of vaccination status was 44%, with a predominance of male gender, age group 60 and older, and the Western Department. Prevalence among unvaccinated persons was 11.59% and never wearing masks was an increased risk of developing antibodies to SARS-COV2. Conclusion Among health care workers, covid-19 affects both sexes with a female predominance. The age group over 60 years is the most affected and not wearing a mask is a risk factor associated with virus detection.