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CDC opens state ordering for COVID-19 vaccines after unexplained delay

After a nearly monthlong delay, states are now able to order this season's COVID-19 vaccines through a federal program that provides free immunizations to low-income children, the US health department says. Trump officials have still not provided a clear explanation for the delay

Ars Technica - All content · 2026年9月24日 22:29

科学与环境

Brain scans reveal a possible cause of long COVID fatigue and brain fog

Researchers have found evidence that long COVID may damage dopamine releasing neurons in the brain, potentially explaining persistent fatigue, low motivation, slowed movement, and memory difficulties. The discovery could lead to new treatments that target the brain's dopamine sys

All Top News -- ScienceDaily · 2026年9月22日 03:48