Recently, Malaysia has been recording an increased number of COVID-19 cases categorised by either the Variant of Concern (VOC) or Variant of Interest (VOI). VOCs or VOIs are mutant forms of the COVID virus (SARS-CoV-2), which are more virulent and infectious than its predecessor Wuhan strain. Dr Liyana explains the difference between VOI and VOCs in Malaysia.
A recent research by Cambridge University found three different strains of the virus in different parts of the world. As COVID-19 continues to sweep across the world, one of the main concerns is whether the virus has since mutated. We asked experts to comment on its impact on vaccine development.