COVID-19 reinfection study from South Africa yields ominous data about Omicron
New variant is better at evading immunity from past infection—and perhaps from vaccination
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Bacteria found in mosquito guts could help scientists fight dengue, Zika
Newly identified microbe disables the viruses before they can infect the insects, potentially reducing disease transmission in people
Startups aim to curb climate change by pulling carbon dioxide from the ocean—not the air
Schemes to use renewable energy to process seawater may be cheaper and easier than air capture