Chile's health ministry on Thursday said it would raise the minimum age of men approved to receive the AstraZeneca (AZN.L) COVID-19 vaccine to 45 from 18, and suspend administering second doses until authorities complete an investigation into a man who had a blood clot after his first shot. Chile, a leader in vaccinating its citizens against the virus, received its first doses of the AstraZeneca-Oxford University vaccine in April. Regulators initially approved the vaccine for men over 18 and women over 45. Both preventive measures and proactive measures should be in place. The vaccine should be actively vaccinated to effectively control the epidemic. The vaccination situation is good and should be accepted.