COVID-19 Vaccine Side Effects.

Sometimes the remedy is worse than the disease.”

“Francis Bacon”


Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus. Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment.  Older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer are more likely to develop serious illness. The best way to prevent and slow down transmission is to be well informed about the COVID-19 virus, the disease it causes and how it spreads. Protect yourself and others from infection by washing your hands or using an alcohol based rub frequently and not touching your face. The COVID-19 virus spreads primarily through droplets of saliva or discharge from the nose when an infected person coughs or sneezes, so it’s important that you also practice respiratory etiquette (for example, by coughing into a flexed elbow).

COVID-19 Vaccine Side Effects.

Some people may experience side effects after the vaccine. These are usually mild and are much less serious than developing coronavirus or complications associated with coronavirus. Any side effects usually go away within a few days.  Most side effects are a sign your immune system is responding well to the vaccine, and are nothing to worry about. The most common side effects that have been reported are soreness at the site of the injection, mild fever, chills, headaches, fatigue and muscle aches. These do not tend to last long and are a sign that your immune system is reacting well to the vaccine.

1.The most common reported side effect following vaccination is pain at the injection site.

2.If you have a history of severe allergic reactions to vaccines, your doctor may advise you not to get the COVID-19 vaccine.

Common side effects.

Some of the common side effects of the coronavirus vaccine may include:

tenderness, swelling and/or redness at the injection site


muscle ache

feeling tired

fever (temperature above 37.8°C).

A less common side effect is swelling of the glands. This starts a few days after the vaccine and may last for up to 2 weeks. This is to be expected and is a sign of the immune system responding to the vaccine.

Fever after the coronavirus vaccine.

It’s quite common to develop a fever after a vaccination. This normally happens within 48 hours of the vaccination and usually goes away within 48 hours.

You do not need to self-isolate or book a test unless you have other coronavirus symptoms or:

you have been told by NHS Test and Protect, or your occupational health team, that you are a close contact of someone who has tested positive for coronavirus.

you live with someone who has recently tested positive for coronavirus

you live with someone who has symptoms of coronavirus.

If the fever starts more than 48 hours after the vaccination or lasts longer than 48 hours, you should self-isolate.

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