LAI JIAHE, a blood donator who has donated blood for 22 years donated for the 300th time at Shenzhen Blood Center yesterday which is the World Health Day. It is his sixth time blood donation during the CONVID-19 pandemic and he said it’s his way to pay respects to medics fighting with coronavirus. Lai who was born in a medic family donated blood Jan. 1, 1998 for the first time and has become the first type-O blood donator who has donated for 300 times in the city.