Delta and Gamma are starting to dominate

Delta, or B.1.617.2, is particularly dangerous. As I’ve written before, this variant spreads much more quickly than other strains of the coronavirus and may cause more severe illness, though scientists are still investigating that second point. Thanks to this variant, it’s now much more dangerous to be unvaccinated than it was a year ago. It’s quickly becoming dominant in the U.S.

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Lessons for COVID-19 from the HIV/AIDS pandemic

This is the last week of Pride Month for 2021, and it’s also officially Pride weekend in NYC, where I live. So, it felt appropriate for me to take this issue to highlight a couple of lessons that the U.S. response to COVID-19 has taken from our response to another pandemic—one that is still ongoing.

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National numbers, June 27

Cases have continued to plateau this week, with less than a 5% drop in the daily average. As I’ve said in previous weeks, this is partially due to slowing vaccinations—the White House admitted last week that the U.S. won’t meet Biden’s July 4 goal—and partially due to the Delta variant, which now causes at least 20% of new cases in the country.

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States scale down COVID-19 reporting frequency

Two weeks ago, I reported that Florida had made a big change to its COVID-19 data reporting: the state switched from daily updates to weekly updates. Other states are making similar changes. Only about half of states update their COVID-19 data every day, NPR reported last week. But it is important to view these changes in context.

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Evaluating exposure notification apps: Expanded methodology behind the story

This week, I have a new feature out in MIT Technology Review. It’s an investigation into the usage rates and public opinion of exposure notification apps—those Bluetooth-enabled systems that promised to function as a method of digital contact tracing. You can read the story here; and for the CDD this week, I wanted to provide kind-of an extended methodology behind the piece.

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