Figure 5.

Epidemiological timeline of ward A cluster

Six patients on ward A were diagnosed with COVID-19. All had been admitted for more than 7 days before their specimen date and were considered likely to have hospital-acquired infections. The date of the first positive sample collection is shown with a red box and patient death date indicated with a solid black bar. Five of the viral genomes (patients A to E) had zero single nucleotide polymorphism differences between them, and one of the viral genomes (patient F) differed by one single nucleotide polymorphism.