A new American study showed that the symptoms reported in recent weeks have changed from the most common symptoms of corona infection, since the virus began spreading around the world, about three years ago.
The study highlights how “previously recorded symptoms have changed with the new mutants of the virus” over the past three years.
According to the Miami Herald, the study says: “The main symptoms were often similar in those infected, regardless of vaccination status.”
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According to the study, “four of the five main symptoms of corona were the same for participants who received two doses of the vaccine, one dose of the vaccine, and those who were not vaccinated. These symptoms were headache, persistent cough, sore throat, and runny nose.”
However, the study found that the main symptoms differed in how they were ranked for each of the vaccination groups. Each group also reported different symptoms.
For those who received two doses of the corona vaccine, symptoms included: sore throat, runny nose, stuffy nose, persistent cough, and headache. Previously, loss of smell, shortness of breath and fever were more common symptoms of corona infection, for those who were vaccinated with two doses, according to the study.
With regard to those who received a single dose of the vaccine, “sneezing” became among the most prominent symptoms of Covid-19 infection for them, and symptoms also included: headache, runny nose, sore throat, and persistent cough.
As for the third group, which is the unvaccinated group, study participants reported that they developed a fever more often than the other groups, and the symptoms were: fever, headache, sore throat, runny nose, and persistent cough.
The study was based on daily self-reports and did not take into account COVID-19 variables or participant demographics.
It is reported that there are many symptoms of corona, according to the Centers for Disease Control and Prevention (CDC), and other symptoms include fatigue, nausea, body aches, and more.
Since the start of the pandemic, the World Health Organization has reported more than 622 million confirmed cases of COVID-19 and more than 6.5 million deaths. These numbers are an underestimate.