Each yellow fever vaccine is valid for 10 years. The yellow fever vaccination certificate issued to travellers heading to the African continent. — Photos: HandoutBut why do we need a yellow fever vaccination certificate to visit African and Latin American countries? Fortunately in 1937, South African virologist Max Theiler successfully developed a vaccine against the yellow fever. Something closer to my heart, the 2002 SARS outbreak almost paralysed the entire travel industry.

Source: The Star February 27, 2021 00:00 UTC