Ilham Aliyev WC-2026 TRIPP Nepal
    Ilham Aliyev WC-2026 TRIPP Nepal

    PCR tests

    Scientists develop method to determine COVID-19 severity by saliva
    Health

    Scientists develop method to determine COVID-19 severity by saliva

    • 19 July, 2021
    • 07:40
    EU begins testing of COVID-19 vaccination certificate system
    Other countries

    EU begins testing of COVID-19 vaccination certificate system

    • 07 May, 2021
    • 14:54