RIYADH — The second dose of coronavirus vaccine is available for people over the age of 60 and above in all vaccination centers, the Ministry of Health (MoH) said on Thursday on its official Twitter account. It may be recalled the ministry halted the administration of the second dose early last month with an aim to provide the first dose to wider segments of the Saudi society. The ministry also said on its Twitter account that those traveling outside the Kingdom must undergo PCR tests for coronavirus only at accredited laboratories licensed by the Public Health Authority (Weqaya). The list of accredited laboratories is available on the following link: https://covid19.cdc.gov.sa/ar/approved-covid-19-laboratories-ar/