Data from the Stockholm metropolitan area shows that one in five blood donors and pregnant women were infected with the virus in the first year of the pandemic.
The method adopted by Sweden in the first wave of the Covid-19 pandemic does not require masks or complete lockdown, but it has affected the spread of the coronavirus among the population.The price paid by the elderly and the most vulnerable has aroused many criticisms from the scientific community. In addition to the excessive death rate recorded in 2020, these criticisms also provide Estimates of the spread of the virus In the population. Data show that as of February 2021, about one-fifth of adults living in the Stockholm metropolitan area have been infected with the virus.
One in five people already has Covid
Calculation results, published in Journal of Internal Medicine, Based on an analysis of antibody responses to the coronavirus detected in the blood of 2,600 donors and 2,500 pregnant women living in Stockholm, indicating that-before the introduction of the anti-Covid vaccine- 19% of people have symptomatic or asymptomatic infections. “Almost all serologically positive samples (96%) showed neutralizing antibody levels comparable to those induced by mRNa vaccine. -Indicate the author of the study-. This shows that even minor infections can usually be Protection level when exposed to the virus again“.
The survey, coordinated by researchers at the Karolinska Institute in Stockholm, showed that the virus is rampant in the Swedish capital. According to the study’s corresponding author, Professor Xaquin Castro Dopico of the Department of Microbiology, Cancer and Cell Biology, the spread of the virus highlights “Need to reduce spread Limit virus evolution And prevent additional burdens on the health system“.
Scholars have concluded that these data should recommend public health methods, taking into account “The potential epidemic and continued development of SARS S-CoV-2 may change the nature of protective immunity (for example, it may be re-infected with a different strain) and knowledge of the specific antibody response that should be used Optimal coordination of vaccination interventions“.