The effect of a single injection can last up to a few months.

Sometimes different types of insulin are mixed together in a single injection.

However, treatment should be short, meaning a single injection daily for about a week.

A single subcutaneous injection lasts for up to 90 minutes.

You may be given either a single injection or multiple injections over a 2-day period.

One single injection is enough to make the subject healthy again.

But a cure for these diseases, perhaps with a single injection, is many years down the road.

"In a couple of patients we have seen some regression after a single injection," she said.

Did she want him to have every single injection without fail?

How it is given: As a single injection that offers protection against all three diseases.