WASHINGTON : In yet another hope to fight several Covid-19 symptoms, administering the MMR (measles, mumps, rubella) vaccine could serve as a preventive measure to dampen septic inflammation associated with the virus infection, say researchers.Vaccination with MMR in immune-competent individuals has no contraindications and may be especially effective for health care workers who can easily be exposed to Covid-19, said experts in a paper published in mBio, a journal of the American Society for Microbiology."A clinical trial with MMR in high-risk populations may provide a low-risk-high-reward preventive measure in saving lives during the Covid-19 pandemic," said Dr Paul Fidel, Associate Dean for Research at Louisiana State University Health.