Key developments for Tuesday, June 30, 2020

Welcome to the newly updated Key Developments, now published twice a week and featuring non-COVID news. Right now, it's still mostly focused on the pandemic, but we're gradually expanding the scope as things evolve.

There are over 10.5 million confirmed global cases, with more than a million new infections reported each week for several weeks in a row. The death toll has surpassed 513,000 worldwide. In the U.S., there are over 2.7 million cases and more than 130,000 deaths. The U.S., Brazil, and Russia continue to see the fastest growth in cases, while India is not far behind.

The U.S. has secured most of the global supply of remdesivir, limiting its availability for other countries. This raises concerns that other nations might retaliate by withholding critical treatments or vaccines in the future.

Global trials of hydroxychloroquine and chloroquine are set to resume. Researchers are eager to determine if these drugs could be used as a preventive measure, though it’s clear they offer little benefit to those already infected.

A national mask mandate could significantly reduce healthcare costs, slow the spread of the virus, and prevent thousands of deaths. Widespread mask use can help avoid the economic hit that lockdowns bring—potentially saving 5% of GDP.

A recent wedding in India led to a major outbreak: the groom died, and 95 guests tested positive. While large gatherings are clearly dangerous, even small ones pose risks, especially in enclosed spaces.

In Seattle, contact tracers found that 80% of people are not isolating on the day they develop symptoms, which undermines efforts to control the spread.

If you’re planning a trip to the EU, you may want to reconsider. The European Union has banned American travelers due to the U.S.’s inability to contain the virus.

And if you're heading to New York, you may need to quarantine. Travelers from 16 states must self-isolate for 14 days upon arrival.

Florida’s emergency management director is making one thing clear: masks are essential.

Dr. Anthony Fauci warned that the U.S. could hit 100,000 new cases per day by July 14 if current trends continue.

A study published in *Nature* found that many asymptomatic individuals had high viral loads, suggesting they were just as contagious as symptomatic patients.

With an R value of 2.5, experts estimate that at least 60% of the population would need to be immune to achieve herd immunity.

The CDC is now openly admitting that the U.S. is losing the battle against the virus. Without a coordinated testing, tracing, and isolation strategy, the situation is likely to worsen.

China is conducting mass testing of the CanSino vaccine on its military, skipping phase three trials and keeping phase two results private. This raises serious safety concerns, and if successful, China could be among the first to roll out a vaccine.

Scientists are still debating whether mild cases lead to strong T-cell immunity. A recent preprint suggests that even mild infections may provide some level of protection.

California is seeing a sharp spike in cases, with a record 7,879 new infections reported in a single day.

Los Angeles County officials have issued a warning about hospital capacity being overwhelmed as case numbers rise rapidly.

States like Texas, Florida, Arizona, and California are rethinking their reopenings. Bars are closing again, indoor dining is being restricted, and mask mandates are being enforced in some areas.

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