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- Page navigation anchor for RE: Mask use in CanadaRE: Mask use in Canada
Thank you for your question. At the time of our original submission (May 8, 2020), mask use was just beginning to be recommended and enforced across the Provinces and Territories and there were no studies estimating the efficacy of mask use for SARS-CoV-2, and in particular, the impact of mask use on SARS-CoV-2 in Canada. For this reason, we did not include mask use as a non-pharmaceutical intervention (NPI). However, we recognise that this is an additional form of NPI in Canada which has since been adopted by a proportion of the population and we are adapting our model to include masking as an additional intervention to explore future scenarios.
Thanks,
VictoriaCompeting Interests: None declared.References
- Victoria Ng, Aamir Fazil, Lisa A. Waddell, et al. Projected effects of nonpharmaceutical public health interventions to prevent resurgence of SARS-CoV-2 transmission in Canada. CMAJ 2020;192:E1053-E1064.
- Page navigation anchor for RE: masksRE: masks
I am curious about the absence of mention of masks in this paper. Could the authors comment. There have been many modelling papers that include degree of masking as a variable.
Competing Interests: None declared.References
- Victoria Ng, Aamir Fazil, Lisa A. Waddell, et al. Projected effects of nonpharmaceutical public health interventions to prevent resurgence of SARS-CoV-2 transmission in Canada. CMAJ 2020;192:E1053-E1064.
- Page navigation anchor for RE: Response to question on physical distancing 1 or 2 metresRE: Response to question on physical distancing 1 or 2 metres
Hi,
Great question and interesting video link (this is one way to think about physical distancing!). In our model, we didn't apply a threshold on the physical distance, we just applied a reduction to the contact rate. In reality, a reduction in contact rate would be achieved the further apart people are so this is more likely to occur at 2 metres apart compared to 1 metre apart.
Cheers,
VictoriaCompeting Interests: None declared.References
- Victoria Ng, Aamir Fazil, Lisa A. Waddell, et al. Projected effects of nonpharmaceutical public health interventions to prevent resurgence of SARS-CoV-2 transmission in Canada. CMAJ 2020;10.1503/cmaj.200990.
- Page navigation anchor for RE: Physical distancing 1 or 2 meters?RE: Physical distancing 1 or 2 meters?
A circle two meters in diameter takes up a lot of space!
See illustrative video below.https://www.facebook.com/centralzoneplayers/videos/1952797724852227/
Competing Interests: See attached video. Thanks.References
- Victoria Ng, Aamir Fazil, Lisa A. Waddell, et al. Projected effects of nonpharmaceutical public health interventions to prevent resurgence of SARS-CoV-2 transmission in Canada. CMAJ 2020;10.1503/cmaj.200990.