This side effect of the vaccine suggests that you may already have had COVID-19
The COVID-19 vaccines are no stranger to side effects. After more than 200 million people received at least one dose of the vaccine, large percentages of them reported reactions such as headache, sore muscles, chills, and mild fever. According to recent research, there is a side effect of the vaccine that may indicate whether you have already had COVID-19.
The study analyzed over 947 people who had received their COVID-19 vaccine and were being monitored for side effects. Of this group, 265 participants had suffered from COVID-19.
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Of all the participants, those who had suffered from COVID-19 in the past were more likely to have swollen lymph nodes. Less than 1% of participants who experienced COVID-19 reported these changes versus 4% of participants who had COVID-19.
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While swollen lymph nodes were the most common side effect in people who had already experienced COVID-19, other symptoms also appeared, including fever, muscle pain, fatigue, and joint pain.
Overall, participants with COVID-19 were more likely to report side effects than people who have not had the disease before. Despite these data, when analyzing the patients 15 minutes after receiving their vaccine, health care workers could not find any differences in symptoms between people with COVID-19 and people without COVID-19.
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As we learn more about the disease and more data becomes available, we will learn more about the vaccines and how they affect our bodies, subjects that leave ample room for discussion and speculation. Despite new variants of the virus and new amounts of information, the vaccine remains a safe and efficient way to contain the spread of the virus and get back to normal.