EU watchdog flags new safety concerns for J&J vaccine

Nov. 11, 2021

The EMA is recommending that a new side effect risk is added to the labeling for J&J’s COVID-19 vaccine.

According to a report in Reuters, health regulators in the EU want to include transverse myelitis as a potential side effect for the shot. A rare but potentially serious type of spinal inflammation, transverse myelitis can cause pain, muscle weakness, sensory problems and more. 

Both the AstraZeneca and J&J vaccines trials were halted due to concerns over the condition. There have also been cases of the rare reaction potentially linked to the Moderna shot. 

Regulators in the EU said they are also examining reports of capillary leak syndrome (CLS) connected to Moderna’s shot. So far, the EMA said they have recorded six instances of the condition, which causes blood vessels to leak fluids, triggering a drop in blood pressure.