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Home > Covid-19 > Covid-19 vaccinations > Doses and boosters explained

Everybody needs enough vaccinations to build their immunity to the highest possible level. This is called the primary course. The number of doses in your primary course will range from one to three, depending on your age and how good your body is at fighting infection.

After your primary course, you need a booster shot to keep your immunity high.

Have you had a positive Covid test?

If you are aged under 18 and have had a positive test result for Covid-19, you need to wait 12 weeks before you get any of the Covid-19 vaccination doses explained below. This inclues children aged 12-15. This is because protection from natural infection is likely to be high for a period of months in younger people.

If you’re aged 18 or older, you need to wait 28 days after a positive Covid-19 test before you get any vaccination.

1st dose

Everybody aged at least 5 years old is eligible for a first dose, and everybody gets the same dose.

If you haven’t had yours yet, then you can book an appointment at one of our vaccination sites. Some sites will even vaccinate you if you just turn up. You can find out which ones do bookings and which ones offer walk-ins by visiting our list of vaccination sites around Derby and Derbyshire.

If you’re a secondary school student aged 12-15, you may have received your first dose at school. If you missed this for some reason, you can book your jab at another site.

At your appointment, you can ask questions about the vaccine. Staff are trained to look after you, including if you’re nervous for any reason.

If you are aged 16-17, not in a clinical risk group and have had a positive rest result for Covid-19, you need to wait 12 weeks before you get a first dose. This is because protection from natural infection is likely to be high for a period of months in younger people.

2nd dose

Second doses are for all people aged over 16.

They are also recommended for children aged 12-15 who are at high risk from Covid-19. That means your body may not be good at fighting infections, so it needs a bit of extra help. GPs and hospitals are getting in touch with people who need this, and will help to organise that second dose. You can also find out if it applies to you or a loved one by checking pages 19 and 20 of The Green Book.

2nd dose waiting periods

If you are aged 18+ then you have to wait eight weeks after your first dose before getting your second dose.

If you are aged 16-17, then you need to wait 12 weeks after your first before getting your second dose.

If you are aged 16 or over, to get your second dose you can visit our list of vaccination sites around Derby and Derbyshire.

3rd dose

A third dose is only for people aged over 12 who are at high risk from Covid-19. This means their bodies need an extra dose to get their immunity high enough.

GPs and hospitals are in charge of getting in touch with people who need this third dose. But to find out if it applies to you or a loved one, you should check pages 19 and 20 of The Green Book.

Boosters

The booster dose keeps your immunity as high as possible after your primary course of vaccinations.

These began in September, 2021, and is now open to people aged over 18 and for people working in health and social care. It will be offered to more people over time, followed by further boosters depending on the decisions of the Joint Committee on Vaccination and Immunisations.

You need to leave 61 days between the last dose of your primary course and getting your booster. You will be able to make a booking on the National Booking Service 30 days in advance of becoming eligible.

You should be contacted to book your booster once you are eligible, but you don’t need to wait for a letter or text if you know you’re eligible.

Last Updated: Thursday 5th May 2022 - 2:23:pm

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