Chlamydia screening practices among physicians and community nurses in Yukon, Canada.

Background: Yukon, a territory in northern Canada, has one of the highest reported sexually transmitted chlamydia infection rates in the country.

Objective: We examined screening practices among physicians and community nurses to elucidate factors that may be contributing to the high rates.

Design: Cross-sectional survey.

Enhanced surveillance for adverse events following immunization: Two years of dTap catch-up among high school students in Yukon, Canada (2004, 2005).

Background: To address the increasing age of pertussis cases, Yukon replaced the Grade 9 tetanus/diphtheria/inactivated polio booster with diphtheria/tetanus/acellular pertussis (dTap) and implemented a dTap catch-up program for Grade 12 students. The program began in June 2004, making Yukon one of the first Canadian jurisdictions to introduce dTap within five years of a tetanus booster. We implemented enhanced surveillance to monitor adverse events following immunization (AEFI) to determine whether students receiving dTap > or =3 to <5 years after their last tetanus booster were at increased risk of severe AEFI.