Have you been vaccinated recently? Are you worried that you might experience blood clotting, which the experts now call a “rare” side effect of some vaccines? Here’s what you need to know about the early signs of blood clot from vaccines.
Blood Clotting and COVID-19 Vaccines: What We Know So Far
If you’ve been following news about COVID-19 vaccines, you probably know that two of them, AstraZeneca (now named Vaxzevria) and Janssen (by Johnson & Johnson), are linked to blood clotting incidences.
Janssen is not yet available in the country at this time (early 2021), but many Filipinos already got the AstraZeneca (AZ) vaccine.
Here’s what we know about the AZ vaccine and blood clotting:
- Last month, the European Medicines Agency (EMA) stated that “unusual blood clots with low platelets” should be listed as very rare side-effects of AZ.
- Experts still cannot identify specific risk factors, but most cases occurred in women within two weeks of vaccination.
- They also observed that blood clots happened in the brain and abdomen.
EMA highlighted that the chance of these side-effects occurring is very low. However, one should watch out for the early signs of blood clot from the vaccine so they can seek prompt treatment.
Finally, please note that AZ, Janssen, and the Sputnik vaccine from Russia are all viral vector vaccines. Pfizer and Moderna are mRNA vaccines.
Unusual Blood Clots and Low Platelet Levles: What Do They Mean?
If you’ll notice, experts called the side-effects “unusual.”
This is because blood clotting and low platelet levels don’t typically occur together.
Blood clotting, medically called thrombosis, happens when blood clumps together in the vein or artery. Clotting is helpful when we sustain wounds because it stops bleeding. However, when it occurs within the blood vessel, it could be dangerous. Complications include stroke and heart attack.
On the other hand, platelets help blood form clots. With a low platelet count, blood cannot clump together, and bleeding may happen.
It is extremely rare for a person to have blood clots when they have a low platelet count. Experts call this thrombosis and thrombocytopenia syndrome (TTS) or vaccine-induced prothrombotic immune thrombocytopenia’ (VIPIT).