The European Medicines Agency (EMA) said there was no evidence for a 4th Covid-19 vaccine. “Currently, there is no evidence for the need for a fourth dose in the general population.” Marco Cavaleri, head of vaccines of the European Medicines Agency Ema, pointed out during a video briefing with the press.

He added that repeated administration of “booster doses of the anti-Covid vaccine with very short intervals could reduce the level of antibodies that can be produced with each administration.”

“In people with severely weakened immune systems and who have already received three doses, it would be reasonable for health authorities to consider administering the fourth dose,” Cavaleri suggests. A review of EMA scientific studies also “did not find any increased risk of complications after mRNA Covid vaccine in pregnancy, spontaneous abortion, preterm birth or adverse effects in unborn babies.”

Meanwhile, preliminary research from Israel suggested that a fourth Covid-19 booster vaccine might not be useful after all.

The results show that a fourth jab is ineffective against stopping Omicron infections.

‘Despite a significant increase in antibodies after the fourth vaccine, this protection is only partially effective against the Omicron strain, which is relatively resistant to the vaccine,’ explained lead researcher Gili Regev-Yochay.