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.
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.
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.
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.
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.
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.
Thrombocytopenia (also spelt thrombocytopaenia) is low platelets, which can result in bleeding problems. Learn more about its causes and symptoms.
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.