Mosialos: How much does the vaccine protect against long Covid syndrome – What applies to those who became ill before or after the vaccine

Vaccination reduces the chances of long-term effects of coronavirus disease (longCOVID), according to the results of studies presented by Elias Mosialos, professor of health economics at LSE.

In a post he mentions that with the advent of his highly contagious variants coronavirusof which they have been stuck or even hospitalized for some time and some have been vaccinated, there is a widespread concern about the so-called long-term COVID syndrome.

An analysis by the United Kingdom Health Insurance Agency (UKHSA) looked at emerging data on the long-term effects of coronavirus disease as it arises after illness or after vaccination. The review included 15 UK and international studies conducted up to January 2022. The data also show that people who have had one or more doses of the coronavirus vaccine and who became ill after vaccination are less likely to develop long-term COVID syndrome. in relation to those who remain unvaccinated and became ill, Mr. Mosialos emphasizes. In addition, those who were vaccinated were less likely to have symptoms for a shorter period of time compared with those who had not been vaccinated.

Mr. Mosialos refers to data provided by the study (www.gov.uk/government/news/ukhsa-review-shows-vaccinated-less-likely-to-have-long-covid-than-unvaccinated):

Regarding those who got stuck after the vaccination

Eight of the 15 studies examined the effect of vaccines before infection. Most of these studies showed that vaccinated (1 or 2 doses) were less likely to develop long-term symptoms than those not vaccinated, both short-term and long-term (4 weeks to 6 months after infection).

People who had received 2 doses of the Pfizer, AstraZeneca or Moderna vaccine or one dose of the Janssen vaccine were about half as likely as those who had received 1 dose or had not been vaccinated to develop long-term COVID symptoms lasting more than 28 days.

Vaccines were more effective against most post-disease symptoms in people 60 years of age and older, and less effective in younger people (19 to 35 years old).

Regarding those who got stuck before the vaccination

Four of the 15 studies compared the long-term symptoms of COVID before and after vaccination.

Another 3 studies in unvaccinated individuals who contracted and developed long-term COVID compared the symptoms in those who were either vaccinated after the disease or remained unvaccinated. Those who were vaccinated were less likely to report long-term symptoms of COVID after vaccination than those who remained unvaccinated during the same period.

People with COVID-19 who were vaccinated earlier after diagnosis were much less likely to report long-term symptoms of COVID than people who were vaccinated later after diagnosis.

“We know that for most people the symptoms of the disease caused by the coronavirus are short-lived and subside. But we also know that for some the symptoms can be more serious and can be treated in a critical condition. For some, however, the disease can eventually become a brake on their daily lives with long-term symptoms “, notes Mr. Mosialos.

He adds that in the UK it is estimated that 2% of the population has reported symptoms, which can last for more than 4 weeks after the initial infection. The three most common symptoms are fatigue, shortness of breath and muscle or joint pain. If someone with the disease is experiencing the above or other unusual symptoms, especially for more than 4 weeks after the infection, they should consider contacting their doctor.

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