The CDC today said though the BA.2.86 proportion jumped, it doesn't yet appear to be driving case increases.
Researchers say the case suggests an unidentified Treponema pallidum strain tied to higher risk for systemic involvement.
Chinese officials told the WHO that the increase in respiratory illness in children is linked to increased circulation of Mycoplasma pneumoniae and an uptick in flu, RSV, and adenovirus.
Infectious disease information from CIDRAP.
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"This [respiratory disease outbreak in children in China] does not have any hallmarks of a new and emerging pathogen challenge. There, immunologically, kids under age 4 are really quite naive to most of these viruses."
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