Good news! Portugal is reporting remarkable progress. Yesterday they reported 1,071 cases and 33 deaths, both ~1/10 of their peak.
It's time to think about an Exit strategy to avoid future waves and allow the country to return to normalcy as soon as possible: Green Zones.
Nearly every major region in Portugal has significant reductions in cases. None of the mainland regions are ready to open up as a whole, but if they can be subdivided into smaller regions, the path to reopening can be accelerated.
The Azores archipelago is close to ZeroCovid.
Madeira, the other Portugese archipelago, is the one region in which cases are not declining rapidly recently. Portugal airlifted patients there a month ago when hospitals were overflowing.
These regions can be subdivided into smaller zones: municipalities. Of 308 municipalities, nearly 200 average less than 10 cases per day, and 40 average less than 1 case per day! ine-pt.maps.arcgis.com/apps/opsdashbo…
Municipalities can be further subdivided into over 3,000 parishes. Many of them must already be covid free, and could return to normalcy if travel restrictions are implemented. Lockdowns have already included such travel restrictions.
With a green zone exit strategy, geographic regions can be isolated from one another by travel restrictions, with permits for commuters and quarantines for new arrivals. As regions become covid-free, they can return to normalcy while the other regions continue to recover.
This strategy has multiple benefits:
1. Regions that are covid-free don’t have to remain locked down waiting for cases to go down elsewhere.
2. The smaller the zones, the faster they can get to zero.
3. As more zones become green, green zones expand and travel can be resumed between them.
4. If new cases arise in a current green zone, travel can be temporarily restricted so the outbreak can be contained within that zone.
This “Green Zone” exit strategy has been successfully applied over and over in many countries throughout the world.
"A group of House Democratic leaders are questioning the the Biden administration's guidance on aerosol transmission which they say relies on "outmoded" science.
"In a letter to White House COVID response chief Jeff Zients, CDC Director Rochelle Walensky and acting Labor secretary Al Stewart, four House committee chairs say they have "serious questions" about adequacy of CDC's guidance on workplace protection from aerosol transmission
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"For the last two weeks, scientists, experts and unions have been prodding the administration to be more specific about guidance on exposure to small aerosol particles that carry COVID-19, which they say the CDC's official guidelines downplay.
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How did India go from 90,000 cases per day to just over 10,000?
Answer is compelling
The big picture: Three things are important to stop the pandemic: Travel restrictions (International), travel restrictions (domestic), and strong local lockdowns where there are outbreaks
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It is time to recognize the scientific basis of India's success and give it its due. With the number of new cases in India leveling recently, the urgency is great to complete the elimination process so that a new surge does not occur.
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Should India join countries in Asia and Oceania in elimination, 50% of the world would become COVID free, and provide an example for emulation that is surely unexpected by western observers.
Vietnam continues to report decreasing case numbers after experiencing their largest outbreak of the pandemic in late January.
Yesterday they reported 5 cases: 4 were already in quarantine, 1 was imported and was placed in quarantine.
Australia reported 5 cases of local transmission since Melbourne lifted its 5 day lockdown. All were linked to the original hotel outbreak and were already quarantined when they were diagnosed.
A worrying trend is emerging: as many countries reported significant reductions in cases over the past several months, resurgences are beginning, and cases are creeping upward in recent weeks.
We’re likely seeing the beginning of the next “wave” of infections.
Possible causes include new variants, changes in government policy, changes in behavior, or all of the above.
What is clear from the data: attempting to open up and tolerate “low” levels of cases has failed over and over again.
There are few countries that are succeeding in keeping cases low but non-zero. South Korea and Japan are the most well-known examples.
Still, this strategy comes with a clear downside: they can not safely return to normalcy, unlike the countries succeeding with #ZeroCovid.