Measles vaccine virus RNA in children more than 100 days after vaccination - Phylogenetic analysis of MeV partial hemagglutinin (H) gene sequences.

Partial sequence generated using the H gene RT-PCR. WHO MeV reference strain sequences include GenBank accession numbers and the eight clades are designated A­­–­H. MeVV sequences associated with patients and vaccine strain genotype A (red) viruses are indicated by case number and associated GenBank accession number. Wildtype genotype A is indicated in blue. Phylogenetic analysis used the Neighbor-Joining and Maximum Composite Likelihood methods and was performed in MEGA7 with a bootstrap analysis of 1000 replicates. The percentage of replicate trees in the bootstrap test (1000 replicates) greater than 85 are shown next to the branches.