Blastomycosis in Ontario, 1994-2003.
We describe a case of blastomycosis in an 8-year-old boy with Blastomyces-associated osteomyelitis and possible pulmonary involvement. We also identify 309 cases of blastomycosis in Ontario that were seen during a 10-year period, 57% of which occurred from 2001 to 2003. The overall incidence during the study period was 0.30 cases per 100,000 population. Most patients were from north Ontario (n = 188), where the incidence was 2.44 cases per 100,000. The incidence in the Toronto region was 0.29 per 100,000. Thirteen percent of cases occurred in children <19 years of age. These findings substantially increase the number of known cases in Ontario and Canada. Clinicians may encounter persons infected with Blastomyces dermatitidis and must be familiar with its signs and symptoms and be aware of locations, such as northwestern Ontario, where disease is endemic or hyperendemic. We advocate resuming blastomycosis as a reportable disease in Ontario to facilitate tracking cases.
Hospital for Sick Children, Toronto, Ontario, Canada.
Shaun K
SK
Morris
Jason
J
Brophy
Susan E
SE
Richardson
Richard
R
Summerbell
Patricia C
PC
Parkin
Frances
F
Jamieson
Bill
B
Limerick
Lyle
L
Wiebe
E Lee
EL
Ford-Jones
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D001758:Blastomyces / Q000302:isolation & purification; D001759:Blastomycosis / Q000453:epidemiology* / Q000382:microbiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D008875:Middle Aged; D009864:Ontario / Q000453:epidemiology; D010019:Osteomyelitis / Q000453:epidemiology / Q000382:microbiology