Four people vaccinated with this vaccine in the United States developed blood clots, and one person died.
The European Medicines Agency (EMA) said it has begun testing blood clots in four people in the United States who were vaccinated with the Johnson & Johnson vaccine.
Johnson & Johnson said it is aware of rare cases of blood clots in those vaccinated with its COVID-19 vaccine and is cooperating with regulators. The company said in a statement: “At this time, there is no clear link between these rare events and the vaccine.”
The Food and Drug Administration (FDA) said it is aware of patients who have developed serious blood clots after receiving the Johnson & Johnson vaccine but noted that the reasons for this might be different.
In the United States, about 5 million people received this vaccine. The vaccine has been approved for use in the EU, but vaccinations have not yet begun.