A safety panel of the European drug regulator has recommended adding a rare spinal inflammation called transverse myelitis as a side effect of AstraZeneca's Covid-19 vaccine, reports Reuters.

The European Medicines Agency's safety committee also reiterated its recommendation of a similar warning to be included for Johnson & Johnson's one-shot vaccine.

The committee, after reviewing data, concluded that a causal relationship between these two vaccines and transverse myelitis is at least a reasonable possibility. But added that the benefit-risk profile of both vaccines remains unchanged.