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PUNE: Experts stressed that all flu-like symptoms fever, headache, body ache, tiredness and chills were adverse reactions or side effects of a vaccine if they happened within 48 hours of the vaccination and they resolved on their own.
They explained that not all side effects were adverse events (AE) and not all adverse events were related to the vaccine. The terms should be used very cautiously, said experts. “‘After this, therefore because of this’, is a very common fallacy in human logic. Not every Y that follows X is caused by X. It could be just coincidental,” said vaccine scientist Prasad Kulkarni. There may be AEs that are not related to the vaccine. “These unrelated events may occur either due to pre-existing known or unknown medical condition of the patient or due to causes which have nothing to do with the vaccine,” he said.