“In order to obtain additional data on safety, efficacy and quality, data from new studies are required.”
The move runs counter to the decision made by the European Union’s drug watchdog – which Switzerland is not a member – to green-light AstraZeneca’s Covid jab last week.
But there is a growing list of EU countries refusing to allow the use of the vaccine in older people.
It has vowed to move swiftly once the data is available.
Switzerland has approved the BioNTech/Pfizer and Moderna coronavirus vaccines for use.
It has only managed to administer 315,000 doses of vaccines, at a rate of 3.64 per 100 people.
Despite a number of European countries moving against the AstraZeneca vaccine, its makers continue to defend the jab.
Director Andrew Pollard, of the Oxford Vaccine group, said people should be reassure that the vaccine is safe and producing a “strong immune response” for older people.
He said: “I think the first really important point is that the European Medicines Agency has approved the vaccine for use in all ages in all countries in Europe.
“But individual countries have their own committees, and they have to look at what vaccines they have available, what they make of the data and what’s best for their population. And so that’s obviously up to them.”
As Europe lags behind Britain’s vaccine, Commission boss Ursula von der Leyen accused the UK of cutting corners over safety.
Matt Hancock says Oxford vaccine ‘works and works very well’
The German said leaving it late “was the right decision”, adding: “It’s a gigantic responsibility.”
Britain secured a three-week head start over Brussels by taking responsibility for any future liabilities for vaccines.
Downing Street said the jabs were safe.
Fuente: Express