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Dr. Victor Leung, MD

1 Jan, 3 tweets, 1 min read

A colleague shared this with me tonight -

Top pic is positive but faint (bil nasal swab only)

Bottom pic taken shortly after is positive with a higher viral load (bilateral cheek and bil nasal swab - couldn’t tolerate throat swab)

To increase sensitivity, remember to take Combined swab

Sent to me from my colleague who wanted me to share this PSA

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Dr. Victor Leung, MD

@VicLeungIDdoc

1 Jan

https://twitter.com/moore_mikhail/status/1477109779008876545

I have heard various reasons why BC is not allowing HCWs to wear an N95 (or equivalent) while working at vaccine clinics.

But, I will submit to you that none of the arguments against N95s (or equivalents) are valid. See short thread ...

https://twitter.com/moore_mikhail/status/1477109779008876545

1/ Let's denote N95 (or equivalent eg. CAN-99, CN-95, KN94) = A

AND

ASTM3 surgical/medical mask = B

2/ In terms of respiratory protection (for both aerosols and droplets), A >> B.

So not allowing a HCW to wear A cannot be justified in terms of safety.

Some have used EQUITY as an excuse. If equity is an issue, then you empower all HCWs to have A.

Read 7 tweets

Dr. Victor Leung, MD

@VicLeungIDdoc

30 Dec 21

@BCNursesUnion

I support ⁦@BCNursesUnion⁩ request for appropriate PPE based on a nurses PCRA.

The PCRA does NOT require secondary approval from a supervisor to wear appropriate respiratory PPE if nurses are informed that #COVIDIsAirborne

vancouversun.com/news/local-new…

BC chose to proceed with a PCRA instead of having appropriate PPE universally for all HCWs. If the province chose this path, they should apply this consistently. Why are we still stuck with droplet dogma?

A few points to revise in the article:
- normal physiologic activities (eg. breathing) generates aerosols
- the AGMP framework is outdated and is no longer acceptable (ie inconsistent w/ principles of physics)
- transmission also occurs during the ASYMPTOMATIC stages

Read 6 tweets

Dr. Victor Leung, MD

@VicLeungIDdoc

15 Dec 21

1/ Re: Rapid Antigen Tests - Are you confused after today's BC COVID-19 press conference?

Let's take a deeper dive

2/ Firstly, it is important to understand that not everyone infected with COVID-19 is infectious (capable of transmitting to others):

BLUE = Infected
RED = Infectious subset

https://twitter.com/michaelmina_lab/status/1446944922469388288?s=20

3/ During the course of an infection, the viral load changes. Most people are infectious for a brief period of time:

https://twitter.com/michaelmina_lab/status/1446944922469388288?s=20

Read 25 tweets

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