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COVID-19

New "Bivalent" (two strain) booster doses are now available for those whose last dose was at least 3 months (84 days) ago (preferably 6 months ago - unless immunocompromised), and who are older than 5.

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Everyone in Ontario aged 6 months and over can (and should) now receive the vaccine.  6-months to 5 years - 2 doses only.  5-18 years old - 3 doses (last dose 6 months after second). 18 and older should have at least 3 doses, with one dose of the Bivalent shot.  People who are 80 or older or immunocompromised should definitely have had 5 or 6 shots by now, and should receive the 6th shot if it has been more than 6 months since their last shot.  This is also probably a good idea for those 65 and older.

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While there is no longer a provincial mask mandate in Ontario for all situations, it does remain in effect for most health care facilities, and for certain people.  Just because there is no mandate, it still remains a smart idea to wear a mask when in close proximity to others, particularly indoors.

Dr.May getting his first shot!

COVID-19 is a respiratory infection that is transmitted in droplets that we spread when we breath or cough.  Though there has been controversy about droplet born vs airborn,  droplet protections are still quite effective at reducing risk.

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VACCINE INFORMATION:

Several vaccines have been demonstrated to be effective and safe of which six are so far approved in Canada, the Pfizer Comirnaty and the Moderna Spikevax vaccines are mRNA vaccines.  The Johnson & Johnson and AstraZeneca vaccines are DNA vaccines in a safe viral vector.  AstraZeneca and Johnson & Johnson are still excellent vaccines, but are mostly unavailable now.  Novavax' Nuvaxovid (ages 18 up) is a recombinant protein vaccine.  Medicago's Covifenz (ages 18-64) is Canada's own vaccine made from plant based protein.  

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Religious concerns: Please note that if you are Catholic, your church approves the use of any COVID-19 vaccine, though I think they prefer the Moderna and Pfizer vaccines.  You can link to the usccb.org website and search up COVID-19 vaccine.

Some treatments that have some benefit:

1) Paxlovid - available for people at risk of serious outcomes - must be started within 5 days of symptom onset.

2) There is some evidence that Remdesivir can reduce duration of illness in those severely infected, but does not improve survivability.  Remdesivir is an injected medication and is not available in pharmacies, and certainly not over the internet.  Our  local hospital will start to carry remdesivir despite its dubious benefit - but access will be very limited.

3) Dexamethasone looks like it can improve outcomes for those with moderate disease or worse - that means in hospital and on oxygen.  More of an effect is seen if used in somebody in ICU on a ventilator.  It appears to worsen mortality in those who are not in this situation.  Dexamethasone works by suppressing the immune system and therefore carries increased risk of invasive fungal infections.

4) Tocilizumab looks beneficial, but it is only available to those with severe COVID illness in the ICU and is given by injection.  It is not clear if it helps reduce mortality, but it does reduce ventilator usage. 

5) The monoclonal antibiodies that were effective before, are no longer effective as of the Omicron BA2 variety. 

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Omicron, unlike prior strains is a very different virus.  While up until now we have seen droplet spread mostly, we may now be dealing with airborne spread, which is exceptionally difficult to prevent.  At this point so many people have been immunized or infected, that public health measures have been reduced, though. 

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To get tested - call the following numbers for an appointment depending on where you live:

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For trustworthy information on COVID-19, please go to the sites below:

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