Foreign media reported on Thursday (19th) that according to recent research conclusions, re-vaccination of people infected with the new coronavirus is expected to reduce the sequelae of “long new crown” (Long Covid).
This is a summary of relevant research, including studies that require further research to confirm the results and that have not been certified by peer review.
The researchers tracked 6,729 volunteers between the ages of 18 and 69, and their results showed that being vaccinated after being infected with SARS-CoV-2 may help reduce the extent of chronic Covid-19 symptoms.
These volunteers received 2 doses of the Covid-19 vaccine (AZ, BNT or Moderna) after contracting Covid-19 and reported at least 1 prolonged Covid-19 symptom, regardless of severity, between February and September 2021.
According to a report in the British Medical Journal (BMJ), the odds of reporting long-term Covid-19 (i.e. symptoms lasting at least 12 weeks) dropped by an average of 13% after the first vaccination. Those who received the second dose 12 weeks after the first dose had an average of an additional 9% lower chance of reporting long-term Covid-19 (symptoms lasting at least 9 weeks).
The chance of reporting severe COVID-19 disease (causing functional impairment) has similarly decreased, the study reported.
The findings were broadly the same regardless of the type of vaccine, the time interval from infection to first vaccination, underlying health status or severity of infection with the new coronavirus.
The study was not designed to detect the difference, and it has not been able to definitively prove that vaccination reduces the chance of developing a new coronavirus.
The researchers mentioned that the long-term relationship between the vaccine and the new crown still needs further research, especially for the impact of the Omicron variant virus, because the Omicron variant virus appeared after the study was completed.
