For the survey, respondents updated their vaccine and infection history and answered questions on PASC-related parameters. To avoid contaminating self-reported long COVID with acute symptoms, questionnaires completed within 28 days of a positive test or within 7 days of vaccination were excluded.
The study’s results were published in the journal, Infection.
“30.7% reported ≥ 1 PASC symptom in 10/2023, with 115 (6.7%) stating to have or have had PASC. Both were most common after wild-type infection compared to other variants,” they wrote. “Overall, 17/115 (15%) indicated relevant/severe restrictions in their daily activities and of 85 (74%) that tried ≥ 1 measure against their symptoms, 69 (81%) reported having benefitted.”3
What You Need to Know
A study in Brazil found that 27.4% of HCWs diagnosed with acute COVID-19 developed long COVID.
A Swiss study surveyed HCWs over a three-year period (2021-2023) to assess long COVID symptoms.
Long COVID symptoms were more common among those infected with the original wild-type SARS-CoV-2 strain than with later variants.
A majority of the HCW did say their symptoms diminished over time. “Over a 30 month period, overall PASC burden in our HCW cohort decreased; although 1% still experience relevant restrictions in their daily life,” the investigators wrote.3
Wild-Type Virus and Long COVID Burden
A longitudinal analysis include 653 HCW, and interestingly, 21% more workers infected with the original wild strain were found to have long COVID symptoms compared to the control group earlier in the pandemic (March 2021). There was a decreasing trend showing only 7% of this group dealing with symptoms 2 and half years later (October 2023).3
“This effect was not evident for non-Wild-type infected HCW,” the authors wrote.3
References
1.Lin S, Deng X, Ryan I, et al. COVID-19 Symptoms and Deaths among Healthcare Workers, United States. Emerg Infect Dis. 2022;28(8):1624-1641. doi:10.3201/eid2808.212200
2.Marra AR, Sampaio VS, Ozahata MC, et al. Risk factors for long coronavirus disease 2019 (long COVID) among healthcare personnel, Brazil, 2020–2022. Infection Control & Hospital Epidemiology. 2023;44(12):1972-1978. doi:10.1017/ice.2023.95
3. Dörr, T., Strahm, C., Güsewell, S. et al. Burden of post–acute COVID-19 sequelae in healthcare workers and its course over a 30-month period–results from a prospective multicentre cohort. Infection (2024). https://doi.org/10.1007/s15010-024-02418-3