Vaccine-related clotting reported ‘RARE’: A man in his 30s sought treatment for a headache and abdominal pain a week after receiving a dose of the AstraZeneca jab, and was found to have blood clotting By Lee I-chia / Staff reporter The Central Epidemic Command Center (CECC) yesterday reported the nation’s first case of thrombosis with thrombocytopenia syndrome (TTS) in a patient who had received a dose of the AstraZeneca COVID-19 vaccine. The center on Tuesday announced that about 260,000 doses of the AstraZeneca vaccine had been distributed to local governments. The doses are expected to cover all eligible people in the first to third priority groups for vaccination in Taipei and New Taipei City, as well as all eligible people in the first priority group in other cities and counties, it said.