Pitting COVID-19 drug candidates against the virus in cell cultures doesn't accurately predict how effective they'll be in the human respiratory tract. Now more accurate models of the human lung airway are uncovering new treatment candidates. They include the antimalarial drug amodiaquine, which reduced viral load in animal models of the virus by 70%.

A Finnish company has announced the development of a new carbon-neutral protein powder called Solein, derived from carbon dioxide, water, and solar energy. Similar in appearance and taste to wheat, the potential uses for the protein are exciting.