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Fig. 2 | Tropical Medicine and Health

Fig. 2

From: Genetic diversity of human respiratory syncytial virus isolated among children with acute respiratory infections in Southern Cameroon during three consecutive epidemic seasons, 2011–2013

Fig. 2

Phylogenetic trees of HRSV-B strains detected in Cameroon from 2011 to 2013. Multiple sequence alignment was performed with Clustal W. The unrooted trees were generated based on nucleotide sequences of the C-terminal HVR2 region of the G gene using the maximum likelihood method under the Tamura-Nei model with the site heterogeneity gamma model in MEGA version 6. The scale bars represent the frequency of nucleotide substitutions, and the numbers at the nodes of the branches are the values determined for the bootstrap resampling after 1000 iterations. Only bootstrap values > 70% are represented. The reference sequences from different continents, obtained from GenBank, are identified from left to right with accession numbers, countries, years of virus collection, and genotypes. Current study strains are identified from left to right by CMR (Cameroon), the year of detection, and the laboratory number. The sequences of Cameroon are marked with triangle, circle, and square for the year 2011, 2012, and 2013, respectively. The groups/genotypes assigned to branches are at the right after the bars

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