The Course of COVID-19 among Unvaccinated Patients—Data from the National Hospital in Warsaw, Poland
A Zaczyński, M Hampel, P Piątkiewicz, J Nasiłowski… - Vaccines, 2023 - mdpi.com
Introduction. Studies to date indicate the relatively high effectiveness of vaccinations in
preventing severe COVID-19 symptoms. However, in Poland, 40% of the population remains …
preventing severe COVID-19 symptoms. However, in Poland, 40% of the population remains …