Figure 2. . . Phylogenetic tree of partial hexon gene sequences (160 bp) of human adenovirus inferred by using the neighbor-joining method from the MEGA4 software (www.megasoftware.net). Study was in a police training center, Kuala Lumpur, Malaysia, 2011. The evolutionary distances were computed by using the maximum composite likelihood method. Species A–F are indicated by square brackets with duck adenovirus A as an outgroup. Thirteen human adenovirus isolates from the police training center outbreak are indicated in boldface. Representative strains of each species obtained from GenBank are labeled by using the adenovirus species and accession number. Bootstrap values (>75%) for 1,000 pseudoreplicate datasets are indicated at branch nodes.