Winnipeg carbon monoxide scare prompts WFPS to issue warning The new directive applies to staff working in vehicles and in situations where physical distancing isn’t possible on the job.The memo attributes the extra safety measures to the arrival of new COVID-19 variants in the city, which have been found to be more contagious.In the memo, Lane said the extra safety measures will be re-examined once more Winnipeggers have received the COVID-19 vaccine..