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Volume 21, Number 11—November 2015
Research

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)
 Air
 Summer: PPT 31 mm/mo, T 11°C–24°C
 Winter: PPT 166 mm/mo, T−1°C to 6°C
Bogotá, Colombia (9)
 B
 Tree
 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
C
 Tree
 Low RH, high T, high EVAP
 High RH, low T, low EVAP
Punjab, Haryana,
Delhi, Chandigarh,
India (11)
 VGIb (AFLP4)
 Tree
 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)
 B
 Tree
 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)
 B
 Tree
 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).

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Page created: October 16, 2015
Page updated: October 16, 2015
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