8 April 2021 Malaysia Khairy Mulls Langkawi Vaccination For Tourism Sandbox Model The MySejahtera app will be Malaysia’s health passport comprising one’s vaccination certificate, as well as Covid-19 and antibody test results, says Khairy Jamaluddin.
26 April 2020 World WHO: Immunity Passports May Not Be Possible WHO has also cautioned the use of antibody tests.