Media in Spain and Russia: Airlines are Addressing the Problem of Blood Clots and Recommending Vaccinated People not to Travel

https://uncutnews.ch/medien-in-spanien-und-russland-fluggesellschaften-gehen-das-problem-der-blutgerinnsel-an-und-empfehlen-geimpften-personen-nicht-zu-reisen/

Blood Clots and Travel: What You Need to Know

https://www.cdc.gov/ncbddd/dvt/travel.html