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Volume 21, Number 11—November 2015

Climatic Influences on Cryptococcus gattii Populations, Vancouver Island, Canada, 2002–2004

Christopher K. UejioComments to Author , Sunny Mak, Arie Manangan, George Luber, and Karen H. Bartlett
Author affiliations: Florida State University, Tallahassee, Florida, USA (C.K. Uejio); British Columbia Centre for Disease Control, Vancouver, British Columbia, Canada (S. Mak); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A. Manangan, G. Luber); The University of British Columbia, Vancouver (K.H. Bartlett)

Main Article

Table 1

Summary of findings from longitudinal Cryptococcus gattii studies*

Location (reference) Genotype, serotype Medium Highest isolation frequency Lowest isolation frequency
British Columbia, Canada (5)
VGIIa (AFLP6A, serotype B), VG IIb (AFLP6B, serotype B)
Summer: PPT 31 mm/mo, T 11°C–24°C
Winter: PPT 166 mm/mo, T−1°C to 6°C
Bogotá, Colombia (9)
Rainy season: RH ≈85%, PPT 120 mm/mo, T 14.4°C–14.8°C
Dry season: Low RH ≈67%, PPT <5 mm, T 14.0°C
Bogotá, Cúcuta,
Medellín, Cali,
Colombia (10)
B Tree High RH, low T, low EVAP Low RH, high T, high EVAP
Low RH, high T, high EVAP
High RH, low T, low EVAP
Punjab, Haryana,
Delhi, Chandigarh,
India (11)
Autumn: RH ≈54%, PPT 60 mm/mo, T 25°C; summer: RH ≈30%, PPT 20 mm/mo, T 32°C; rainy: RH ≈60%, PPT 150 mm/mo, T 31°C
Winter: RH ≈55%, PPT 10 mm/mo, T ≈17°C; Spring: RH ≈39%, PPT 11 mm/mo, T 23°C
Jabalpur, India (12)
Summer: T 32°C, PPT 0.9–141 mm/mo
Rainy: T 6.6°C–30.6°C, PPT 141–589 mm/mo
São Paulo, Brazil (13)
November: PPT 244 mm/mo, T 22°C
Other months: PPT 10– 400 mm/mo, T 18°C–26.5°C
Barroso Valley, Australia (14) B Air Eucalyptus flowering (Dec–Feb): PPT 0–4.32 mm/mo, T 20.4°C–21.5°C Other months: PPT 5.08–164 mm/mo, T 8°C–20°C

*Most studies identified the seasons with the greatest or lowest C. gattii isolation frequency. Studies commonly examined relative humidity (RH), temperature (T), precipitation (PPT), or evaporation (EVAP).

Main Article

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