While we wait for the results of large clinical trials of vaccines against COVID-19, experts say the data so far suggest one important possibility: that the vaccines do have short-term side effects. The vaccines tested so far all appear to be “reactogenic.” This means that they have caused short-term discomfort in a percentage of the people who have received these vaccines. This includes headache, sore arms, fatigue, chills, and fever. However, these side effects are only temporary and not severe, so it should not be a cause for concern. In fact, they may be signals of an immune system working hard as it should. It’s a simple fact that some vaccines are more unpleasant to take than others. Regardless, preventing this virus makes sense both in terms of our health and our economy.
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