Covid 19 coronavirus: Warning after man in Victoria, Australia, develops blood clots following vaccine 2 Apr, 2021 06:43 AM 4 minutes to read The World Health Organisation and the EU's health watchdog have both deemed the AstraZeneca vaccine, pictured, safe after fears were raised of the jab having serious side effects. Photo / AP The World Health Organisation and the EU's health watchdog have both deemed the AstraZeneca vaccine, pictured, safe after fears were raised of the jab having serious side effects. Photo / AP news.com.au A Victorian man has been admitted to hospital with a rare blood clotting disorder just a few days after receiving the AstraZeneca vaccine.