ANALYSIS: The Swiss Cheese Model of Pandemic Defense

Lately, in the ongoing conversation about how to defeat the coronavirus, experts have made reference to the “Swiss cheese model” of pandemic defense.

The metaphor is easy enough to grasp: Multiple layers of protection, imagined as cheese slices, block the spread of the new coronavirus, SARS-CoV-2, the virus that causes Covid-19. No one layer is perfect; each has holes, and when the holes align, the risk of infection increases. But several layers combined — social distancing, plus masks, plus hand-washing, plus testing and tracing, plus ventilation, plus government messaging — significantly reduce the overall risk. Vaccination will add one more protective layer.

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ANALYSIS: How Melbourne, Australia, eradicated Covid-19

In July and August, the Australian state of Victoria was going through a second Covid-19 wave. Local leaders set an improbable goal in the face of that challenge. They didn’t want to just get their Covid-19 numbers down. They wanted to eliminate the virus entirely.

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Asia Has Beaten Back Each Wave of COVID-19. But This Surge Could Be Different

New coronavirus restrictions: Here's what each state is doing to combat rising cases and deaths

As Virus Spreads, C.D.C. Draws Up an Urgent Battle Plan

With coronavirus infections soaring across the nation, federal health officials on Friday urged Americans in the most forceful language yet to take steps to protect themselves — starting with consistent, proper use of masks — and pressed local governments to adopt 10 public health measures deemed necessary to contain the pandemic.

The guidance reflected deep concern at the agency that the pandemic is spiraling further out of control and that many hospitals are reaching a breaking point, potentially disrupting health care across the country.

Agency officials have issued increasingly stark warnings in the waning weeks of the Trump administration, and President-elect Joseph R. Biden Jr. has promised a new national strategy to turn back the virus. On Thursday, Mr. Biden said he would call on Americans to wear facial coverings for 100 days.

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CDC: How to mitigate COVID-19 transmission in densely populated areas globally

High-density urban areas may face challenges implementing COVID-19 mitigation measures due to space limitations within and between households and limited water, sanitation, and hygiene (WASH) infrastructure.

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COVID-19: Saturday's overview of developments world wide

Coronavirus spike could change outbreak investigations

Maine’s top public health official says the state is considering scaling back investigations into cases of COVID-19 to focus on the most vulnerable populations, as some other states have already done.

Maine Center for Disease Control and Prevention Director Dr. Nirav Shah warned Friday that “continued sustained ferocious levels of community transmission” is prompting the discussion.

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WHO set to approve a COVID-19 vaccine by end of 2020—increasing hopes for equitable access

Beleaguered nursing homes prepare for monumental task of vaccinating residents and staff

Coronavirus Virus becomes leading cause of death in US

Increased Intensity Of PCR Testing Reduced COVID-19 Transmission Within Countries During The First Pandemic Wave

No medication has proven effective in slowing transmission of the novel coronaviru

s (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19). Lacking a v

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What the World Can Learn From Africa’s Covid-19 Response

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African malaria deaths set to dwarf covid-19 fatalities as pandemic hits control efforts, WHO warns

INVESTIGATION: How Florida’s governor misled the public on the COVID-19 pandemic

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