Over the next few weeks, certain at-risk groups in the UK will be offered a Covid-19 booster.

Due to the discovery of a new Covid variation, England's autumn flu and Covid-19 vaccination regimens will launch earlier than anticipated.

Scientists from the UK Health Security Agency (UKHSA) are investigating the variant BA.2.86, which was discovered for the first time in the UK on Friday, August 18.

The UKHSA's most recent risk assessment identifies BA.2.86 as having a large number of mutations and showing up in people without a history of travel in multiple nations.

Although BA.2.86 is not officially listed as a variant of concern, the UKHSA advises that accelerating the autumn vaccination plan will provide better protection, assisting individuals who are most at risk of serious illness and minimising any potential negative effects on the NHS.

The autumn booster offers increased protection against more serious Covid symptoms. If invited, you will receive a booster dose of a vaccine made by Pfizer, Moderna, or Sanofi. These vaccines have been updated since the original vaccines and target Covid variants. The vaccines offer slightly higher levels of antibodies against more recent strains of the virus, such as Omicron.

Here’s who will be eligible for the autumn booster and when you can expect to receive your appointment.

When will you be offered the autumn Covid booster?

For those who are most at risk, such as adult care home residents and those who are immunosuppressed, vaccinations will start on September 11.

People will begin receiving invitations from the NHS starting on September 18 in priority order of risk, and those who qualify may schedule an appointment through the National Booking Service.

If you have had previous booster doses, this will likely be timed around six months from your last dose. However, you’re able to have another booster after three months, so don’t worry if it’s slightly sooner.

In comparison to those who did not obtain an autumn booster vaccination last year, those who did were around 53 per cent less likely to visit the hospital with Covid two to four weeks after their vaccination.

The autumn booster programme last year protected the most vulnerable and made it easier for us to live with Covid by immunising more than 73 per cent of 65- to 70-year-olds and nearly 84 per cent of over-80s.

Who is eligible for the autumn Covid booster?

People aged 75 and above, residents in care homes for older people, and those aged five and over with a weakened immune system will be eligible for the booster dose.

The NHS and the Government have selected these groups because Covid affects older people and those with underlying health conditions more seriously. In addition, if you have not yet had either of your first two doses of the vaccine (or a third dose for those with a weakened immune system), you can also have the autumn booster to catch up to recommended levels.

Possible side-effects of the autumn Covid booster

There are very few people who shouldn’t have the Covid booster. If you receive a letter inviting you to an appointment, you are advised to take it.

As with any previous Covid vaccines you may have had, there are some common side-effects to be aware of, such as:

• Painful, heavy feeling and/or tenderness in the arm where you had your injection, usually lasting one or two days after the vaccine

• Tiredness

• Headaches

• General aches or mild flu-like symptoms

To help mitigate these side-effects, the NHS advises rest and taking paracetamol. Symptoms following vaccinations normally last less than a week. If your symptoms seem to get worse or if you are concerned, you should call NHS 111 or text or phone 18001 111 for personalised advice.

In particular, you should seek advice if you experience:

• Chest pain

• Shortness of breath

• Feelings of having a fast-beating, fluttering, or pounding heart