The county has so far received about 10,000 doses of vaccine, he said.

As it turns out, California is short on the vaccine doses.

About one to two eggs are needed to make each dose of vaccine.

The official decision is now to give only one dose of vaccine per person (rather than two previously).

Manufacturers have also donated about 150 million doses of vaccine.

At least three doses of vaccine should be given, they wrote, before stopping the antibiotics.

It can take up to 10 vaccine doses, spaced months apart.

They had pledged to provide 25 million doses of vaccine every year to the programme.

There are 30 million doses of vaccine in the European Union.

Multidose means that many doses of vaccine come in one bottle.