A new study co-led by ISGlobal, the Manhiça Health Research Centre (CISM) and the Instituto de Biomedicina de Valencia (IBV), used cutting-edge sequencing technology and phylogenetic analysis to study the second and third waves of COVID-19 in Mozambique. The results, published in the Lancet Global Health, show that the beta variant of SARS-CoV-2 arrived mainly from South Africa, while delta arrived mainly from the UK and India, in addition to South Africa.