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Newly Recognized Pediatric Cases of Typhus Group Rickettsiosis, Houston, Texas, USA

Timothy Erickson, Juliana da Silva, Melissa S Nolan

    Emerging Infectious Diseases
    |November 18, 2017
    PubMed

    Insights

    Typhus group rickettsiosis cases increased in Texas, USA, with an expanding geographic range. This study identified 36 pediatric cases in the Houston area between 2008 and 2016.

    Area of Science:

    • Infectious Diseases
    • Epidemiology
    • Pediatrics

    Background:

    • Typhus group rickettsiosis is an emerging infectious disease.
    • The incidence and geographic distribution of this illness have been increasing.
    • Pediatric populations are particularly vulnerable to rickettsial infections.

    Purpose of the Study:

    • To investigate the trend of typhus group rickettsiosis in Texas.
    • To characterize pediatric cases of typhus group rickettsiosis in the Houston metropolitan area.
    • To determine the temporal and geographic expansion of the disease.

    Main Methods:

    • Retrospective analysis of medical records.
    • Data collected from a large pediatric hospital in the Houston area.
    • Case identification and review for the period 2008-2016.

    Main Results:

    • An increase in typhus group rickettsiosis cases was observed over the study decade.
    • The earliest identified cases were diagnosed in 2011.
    • The study identified 36 pediatric cases within the Houston area.

    Conclusions:

    • Typhus group rickettsiosis is a growing public health concern in Texas.
    • Pediatric cases are a significant component of the disease burden.
    • Further surveillance and research are needed to understand the expanding range and transmission dynamics.

    Keywords:
    Rickettsia typhiTexasUnited Statesbacteriafleaborne diseasemurine typhuspediatric infectious diseasesrickettsial diseasestyphus group rickettsiosisvector-borne infectionszoonoses

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