Our Symptom checker provides clinical advice on what to do next based on your symptoms.
About the COVID-19 vaccines
Frequently asked questions about the COVID-19 vaccines, including the Pfizer COMIRNATY vaccine. Discover how it was developed and whether it's safe.
Getting the COVID-19 vaccination
Find out who can get the COVID-19 vaccine, including whether it's safe for pregnant women or older people, and when and where you can get vaccinated.
COVID-19 Vaccine Side Effect Checker
If you have had a COVID-19 vaccination and think you may be experiencing side-effects, you can check here.
7 reasons people don't get COVID-19 vaccinations, and why you should — right now
You, or someone you know, may be hesitant to get a COVID-19 vaccination. Here, some common concerns are addressed, including about the AstraZeneca vaccine.
Thrombosis with thrombocytopenia syndrome (TTS)
Learn about TTS, a very rare blood-clotting syndrome linked to the AstraZeneca COVID-19 vaccine (Vaxzevria) - including symptoms and treatment here.
A blood clot can affect your heart, lung or brain, which could be life-threatening. Learn how to recognise the signs of a blood clot.
Thrombosis, such as deep vein thrombosis (DVT), is where a blood clot forms in a vein or artery. Learn about the risk factors and how to prevent it.
After you get the COVID-19 vaccination
Frequently asked questions about what happens after a COVID-19 vaccination, in regard to side effects, restrictions, travel and more.
The D-dimer test is a blood test that checks for, or monitors, blood-clotting problems. Find out what a positive result means for you.
Thrombocytopenia (also spelt thrombocytopaenia) is low platelets, which can result in bleeding problems. Learn more about its causes and symptoms.