Fig. 5
From: Sequential viral introductions and spread of BA.1 across Pakistan provinces during the Omicron wave
Introduction and linkage of omicron variants in Pakistan. Phylogenetic trees depict the first case report for each variant as a red circle in the identified timeline with relatedness to later isolates. Panels A-D depict the first case of each variant identified by a red circle for A, BA.1; B, BA.2; C, BA.4 and D, BA.5. Regional locations are identified by colors; Sindh in light yellow, Balochistan in pink, AJK in blue, Punjab in light green, GB in dark green and ICT, light blue. Data are presented as auspice output of the tree generated using IQ-TREE v. 2.2.0