Laboratory technicians wearing personal protective equipment handle samples to be tested for Covid-19 in Wuhan, China, following an outbreak of the Delta variant in the city. Photo: AFP
Laboratory technicians wearing personal protective equipment handle samples to be tested for Covid-19 in Wuhan, China, following an outbreak of the Delta variant in the city. Photo: AFP

Delta variant’s global spread raises question: will Covid-19 become more infectious?

  • Past pandemics offer potential scenarios for Covid-19’s trajectory, but scientists are divided on the threat posed by emerging variants
  • No new strain has yet rendered existing vaccines ineffective, however, and high inoculation rates are still seen as key to a global recovery

Topic |   Coronavirus pandemic
Laboratory technicians wearing personal protective equipment handle samples to be tested for Covid-19 in Wuhan, China, following an outbreak of the Delta variant in the city. Photo: AFP
Laboratory technicians wearing personal protective equipment handle samples to be tested for Covid-19 in Wuhan, China, following an outbreak of the Delta variant in the city. Photo: AFP
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