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Volume 31, Number 3—March 2025
Dispatch

Haemophilus influenzae Type b Meningitis in Infants, New York, New York, USA, 2022–2023

Anne Ewing, Sydney Haldeman, Megan J. Job, Caitlin Otto, and Adam J. RatnerComments to Author 
Author affiliation: New York University Grossman School of Medicine, New York, New York, USA

Main Article

Figure

Genetic distance tree constructed to assess genetic relatedness among strains in study of Haemophilus influenzae type b (Hib) meningitis in infants, New York, New York, USA, 2022–2023. We constructed the tree using Mashtree (10) for Hib strains from the 2 New York patients (red asterisk) and reference sequences from GenBank (Appendix Table). Rings are color-coded to indicate MLST (inner ring) and CC (outer ring). Tree was rooted using the genome for NCTC 8468 (GenBank accession nos. GCA_90147285.1), a division II, sodC-containing Hib strain distantly related to other sequenced Hib isolates. Branch lengths represent mash distances. CC, clonal complex; MLST, multilocus sequence type; NA, not available.

Figure. Genetic distance tree constructed to assess genetic relatedness among strains in study of Haemophilus influenzae type b (Hib) meningitis in infants, New York, New York, USA, 2022–2023. We constructed the tree using Mashtree (10) for Hib strains from the 2 New York patients (red asterisk) and reference sequences from GenBank (Appendix Table). Rings are color-coded to indicate MLST (inner ring) and CC (outer ring). Tree was rooted using the genome for NCTC 8468 (GenBank accession nos. GCA_90147285.1), a division II, sodC-containing Hib strain distantly related to other sequenced Hib isolates. Branch lengths represent mash distances. CC, clonal complex; MLST, multilocus sequence type; NA, not available.

Main Article

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