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Spikevax Covid vaccine: Eight signs you need ‘urgent medical attention’ – the side effects


As Spikevax does not contain the virus, it cannot give you COVID-19. The vaccine works by stimulating the body’s immune system, causing it to produce antibodies against the virus that causes COVID-19. Most side effects go away within a few days of appearing, but there are some which you should seek “urgent medical attention” for, according to the UK government.

The Spikevax vaccine is used to prevent COVID-19 caused by SARS-CoV-2. It can be given to adults and children aged 12 years and older.

It is a two dose vaccine, and it is recommended that you get your second dose 28 days after the first dose.

Spikevax may not fully protect all those who receive it, but has a high degree of efficacy, according to recent clinical studies.

Although most side effects go away within a few days of appearing, there are a number which you should immediately seek medical attention for.

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These include stomach pain, feeling faint or light-headed, as well as nausea or vomiting, according to UK government advice on the vaccine.

If you experience changes in your heartbeat, shortness of breath or wheezing you should also speak to your doctor.

The other signs in this category include swelling of your lips, face, tongue or throat and hives or rash.

“Get urgent medical attention” if you experience any of these signs and symptoms of an allergic reaction, the site warns.


You should also talk to your doctor or nurse if you develop any other side effects, the government adds.

Some are very common and may affect more than one in 10 people.

They include tenderness near where you were injected, a headache, feeling very tired, and a number of other effects.

If you are concerned about a side-effect it can be reported directly via the Coronavirus Yellow Card reporting site. The purpose of the scheme is to provide an early warning that the safety of a product may require further investigation.

The government has recently announced that millions of vulnerable people in the UK are to be offered a COVID-19 booster vaccine.

“People will be offered either a full dose of the Pfizer/BioNTech vaccine or a half dose of the Moderna vaccine, following scientific evidence showing that both provide a strong booster response.

“This will be regardless of which vaccine the individual previously had,” the government has said.

The booster is being offered at least six months after your last dose.

If you have had a severe reaction to a previous dose of the vaccine it is recommended by the government that you discuss getting your booster with your doctor.

“If you have not yet had either of your first two doses of the vaccine you should have them as soon as possible.

“You will still need the booster but the timing of it will depend on when you had your first two doses,” the UK government states.

The NHS should let you know when you should get a booster jab.

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