Invasive Haemophilus influenzae Type B Disease in Elderly Nursing Home Residents: Two Related Cases
Timothy C. Heath*†, Moira C. Hewitt†‡, Bin Jalaludin*, Christine Roberts†, Anthony G. Capon*, Peter Jelfs§, and Gwendolyn L. Gilbert§
Author affiliations: *Western Sector Public Health Unit, North Parramatta, New South Wales; †Australian National University, Australian Capital Territory, Australia; ‡Department of Public Health and Community Medicine, Westmead, New South Wales; and §Institute of Clinical Pathology and Medical Research, Westmead, New South Wales
Figure. Pulsed field gel electrophoresis of Haemophilus influenzae type b (Hib) isolates from blood culture of two elderly nursing home residents (lanes 1 and 2) compared with epidemiologically unrelated H. influenzae isolates sent to our laboratory for typing: lane 3, laboratory Hib strain; lane 4, non-H. influenzae; lane 5 and 12, invasive nontypeable H. influenzae; lane 6-11, unrelated Hib isolates; lane 13, H. influenzae type a; lane 14, 1 kilobase molecular marker. The enzyme used for DNA digestion was Apal.
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