WHO urges countries not to pause Covid-19 vaccinations

The World Health Organization (WHO) has urged countries not to pause Covid-19 vaccinations, as several major European Union (EU) member states halted their rollouts of the Oxford-AstraZeneca jab.

It said there was no evidence of a link between the vaccine and blood clots.

“We do not want people to panic, there has been no association, so far, pinpointed between so-called thromboembolic events reported in some countries and Covid-19 shots”, Soumya Swaminathan said on a virtual media briefing.

There have been a number of cases in Europe of blood clots developing after the vaccine was administered.

However, experts say these were no more than the number of blood-clot incidents typically reported within the general population.

About 17 million people in the EU and the UK have received a dose of the vaccine, with fewer than 40 cases of blood clots reported as of last week, AstraZeneca said.

Germany, France and Italy said yesterday that they would suspend AstraZeneca Covid-19 shots after several countries reported possible serious side-effects.

Still, the decision by the EU’s three biggest countries to put inoculations with the AstraZeneca shot on hold threw the already struggling vaccination campaign in the 27-nation EU into disarray.

Germany’s health ministry announced that it would stop administering the Oxford-AstraZeneca vaccine with immediate effect, on the recommendation of the Paul Ehrlich Institute (PEI), the country’s authority on vaccines.

“The background to this decision follows new reports of cases of cerebral vein thrombosis connected with an AstraZeneca vaccination,” Health Minister Jens Spahn said.

“In light of these newly reported cases, the Paul Ehrlich Institute today re-evaluated the situation and recommended a suspension of vaccinations and further analysis.”

Denmark and Norway stopped giving the shot last week after reporting isolated cases of bleeding, blood clots and a low platelet count. Iceland and Bulgaria followed suit and Ireland and the Netherlands announced suspensions on Sunday.

Spain will stop using the vaccine for at least 15 days, Cadena Ser radio reported, citing unnamed sources.

France said it was suspending the vaccine’s use pending an assessment by EMA.

“The decision taken, in conformity also with our European policy, is to suspend, out of precaution, vaccination with the AZ shot, hoping that we can resume quickly if the EMA’s guidance allows,” French President Emmanuel Macron said.

Italy said its halt was a “precautionary and temporary measure” pending EMA’s ruling.

“The EMA will meet soon to clarify any doubts so that the AstraZeneca vaccine can be resumed safely in the vaccination campaign as soon as possible,” said Gianni Rezza, Director General of Prevention at Italy’s Ministry of Health.

Austria and Spain have stopped using particular batches and prosecutors in the northern Italian region of Piedmont earlier seized 393,600 doses following the death of a man hours after he was vaccinated. It was the second region to do so after Sicily, where two people had died shortly after having their shots.

The WHO appealed to countries not to suspend vaccinations against a disease that has caused more than 2.7 million deaths worldwide. WHO Director-General Tedros said systems were in place to protect public health.

“This does not necessarily mean these events are linked to COVID-19 vaccination, but it’s routine practice to investigate them, and it shows that the surveillance system works and that effective controls are in place,” he told the media briefing.

The United Kingdom said it had no concerns, while Poland said it thought the benefits outweighed any risks.

The EMA has said that as of March 10, a total of 30 cases of blood clotting had been reported among close to 5 million people vaccinated with the AstraZeneca shot in the European Economic Area, which links 30 European countries.

Michael Head, a senior research fellow in global health at the University of Southampton, said the decisions by France, Germany and others looked baffling.

“The data we have suggests that numbers of adverse events related to blood clots are the same (and possibly, in fact lower) in vaccinated groups compared to unvaccinated populations,” he said, adding that halting a vaccination programme had consequences.

“This results in delays in protecting people, and the potential for increased vaccine hesitancy, as a result of people who have seen the headlines and understandably become concerned. There are no signs yet of any data that really justify these decisions.”

A senior German infectious diseases physician, however, said the background incidence of 2-5 thromboses per million per year was significantly lower than the number of 7 out of 1.6 million vaccinated people cited by Germany’s health ministry.

“This should be the reason to suspend the vaccination in Germany until all cases, including suspected cases in Germany and Europe, have been completely cleared up,” said Clemens Wendtner, head of the special unit for highly contagious life threatening infections at the Schwabing Clinic in Munich.