If Europe and the United States get into a “race to the bottom” around hydrogen subsidies, supporting ever leakier and less stringent supply chains in a bid to dominate the industry, then the planet will suffer.

Source: https://www.nytimes.com/2023/04/07/opinion/electric-vehicles-europe-trade-wars.html

Immunity acquired from vaccination or previous infections alone was leakier — they conferred reasonable protection from infection when exposure to the virus was low, but much less when exposure was high.

Source: https://www.centralmaine.com/2023/09/02/commentary-covids-back-whos-most-likely-to-get-it-again/