SINGAPORE: Information on bivalent COVID-19 vaccines in Singapore don’t present an elevated danger of ischemic stroke related to up to date Moderna or Pfizer-BioNTech vaccines, the Ministry of Well being (MoH) mentioned on Saturday, January 14.

The Division of Well being’s assertion got here after US federal well being officers launched an investigation into a preliminary safety concern about the potential increased risk of stroke in the elderly Who acquired the bivalent vaccine?

“Native information presently collected for bivalent vaccines in Singapore don’t present an elevated danger of ischemic stroke after receiving the Moderna or Pfizer-BioNTech/Comirnaty bivalent vaccine,” the Ministry of Well being mentioned.

“The protection profile of bivalent mRNA vaccines was noticed to be just like that of their monovalent variations.”

Ischemic stroke, often known as cerebral ischemia, is attributable to blockages within the arteries that carry blood to the mind.

The preliminary security concern concerning the Pfizer bivalent vaccine was recognized by one of many US Facilities for Illness Management and Prevention’s monitoring techniques, often known as the vaccine security information hyperlink (VSD).

It uncovered a possible security situation the place individuals aged 65 and over have been extra prone to have an ischemic stroke 21 days after receiving the Pfizer-BioNTech bivalent vaccine in comparison with days 22 to 44.

Nonetheless The US CDC said on Friday. Pfizer’s bivalent COVID-19 vaccine is “unlikely” to pose an elevated danger of stroke in individuals 65 and older.

The well being company mentioned no different surveillance system has up to now recognized an identical security concern.

“A big research of up to date (bivalent) vaccines (from Pfizer-BioNTech and Moderna) utilizing the Facilities for Medicare and Medicaid Providers database revealed no elevated danger of ischemic stroke,” mentioned the US CDC.

He additionally added that different international locations haven’t noticed an elevated danger of ischemic stroke with up to date bivalent vaccines and that the problem wants additional investigation.