Our Expert Voices conversation on pandemics.

It's no coincidence that America's last two pandemic threats — Ebola in 2014 and Zika in 2016 — struck Texas and Florida. I've previously called the Gulf Coast region (Texas, Louisiana, Mississippi, Alabama and Florida) America's "soft underbelly" when it comes to emerging infectious and tropical diseases. Here's why:

  • Gulf Coast urban centers are major gateways for people.
  • Insects such as the Aedes aegypti mosquito (that transmit Zika, dengue, yellow fever among other viruses), kissing bugs (Chagas disease), and others are widespread across the southern U.S.
  • The region is especially susceptible to the effects of climate change.
  • The Gulf Coast has the highest concentration of poverty in the U.S. Presumably due to poor housing and waste disposal, poverty is a leading social determinant of infectious and tropical diseases.

Bottom line: There is an urgent need to strengthen the health systems of the U.S. Gulf Coast states, particularly in active surveillance and disease detection activities, while doing a better job reaching region's poorest inhabitants to promote access to health services, and essential diagnostics, medicines, and vaccines.

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NYC's coronavirus positivity rate spikes to highest since June

New York Mayor Bill de Blasio. Photo: Noam Galai/Getty Images

New York City's coronavirus positivity rate has ticked up to 3.25%, its highest since June, Mayor Bill de Blasio said at a news conference on Tuesday.

Why it matters: The jump — from 1.93% on Monday — came on the first day that public elementary classrooms reopened in the city after months of closures, but guidelines state that all public schools will have to shut if the citywide seven-day positivity rate stays above 3%.