Persistence Of Covid-19 Antibodies Varies Widely From Person To Person
One of the greatest unsolved mysteries of Covid-19 is why the neutralizing antibodies our bodies generate in response to the virus tend to dwindle in number so quickly. A small minority of studies, including one completed in Iceland last summer, have observed …
New Study Predicts Immune Protection May Vary For Different Covid-19 Vaccines
After more than a year of lockdowns, isolation, and great loss of human life, the slow but steady rollout of Covid-19 vaccines has given us all a much-needed glimmer of hope. As of March 22, the total number of doses administered worldwide …
Preventing Fecal-Oral And Fecal-Aerosol Transmission Of Covid-19
Last year, I conducted an interview with a friend who traveled to Shanghai and was forced to quarantine in a hotel for 11 days under the supervision of local health authorities. He was brought hot meals, subjected to temperature checks twice daily, …
Variants: Forewarned Is Forearmed— For Those Who Listen
We now know the adaptive power of SARS-CoV-2 variants. Newly described Covid-19 variants isolated in the United Kingdom, South African, Brazil, the United States, and Nigeria appear to be more transmissible, resist neutralization. and may be more virulent. Now turn back the …
Why Patterns In Covid-19 Variation Might Resemble Seasonal Flu
We’ve learned that some variants of SARS-CoV-2 are more transmissible. Equally troubling is the possibility that future variants — or ones currently circulating off our radar — will in some way compromise our natural immune response, complicating our ability to treat critically …
Why America Should Look To China To Contain Covid-19
Since the earliest days of the Covid-19 pandemic, American news media has been rife with stories about how China handled – or according to many of the reports, mishandled – the initial outbreak. The most recent is a story in the New York …
The Trouble With Herd Immunity And Covid-19 Vaccines
Now that an independent advisory panel has voted in favor of approving Pfizer’s two-dose Covid-19 vaccine, it likely won’t be long before the US Food and Drug Administration (FDA) clears it for emergency use. Within 24 hours of their decision, millions of …
How Will A Covid-19 Vaccine Impact Travel?
In the past decade, the world has seen a steady rise in travel and tourism that undoubtedly influenced the trajectory of the Covid-19 pandemic. People flew in and out of China six times as much on a daily basis in 2018 than …
These Forms Of Covid-19 Transmission May Be Rare, But Can’t Be Ignored
Last month, China was struck with its worst outbreak of Covid-19 in months—183 infections across Xinjiang, a city in the western province of Kashgar. While the majority of cases traced back to a garment factory, we now know the true source: contaminated …
Why Most Countries Won’t Benefit From Moderna And Pfizer’s Covid-19 Vaccines
That the Moderna and Pfizer Covid-19 vaccines demonstrated efficacy in more than 90 percent of phase 3 trial participants is cause for celebration. Developed at breakneck speed with heretofore unrealized mRNA technology, they have without a doubt made history, especially now that …
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