US officials continued to send mixed messages about the arrival of a COVID-19 vaccine and the benefits of masks, as vaccine developer Moderna today released a document that spells out how it's conducting phase 3 trials.In other developments, US cases remained at steady but high levels, with 36,782 cases reported yesterday, according to the Johns Hopkins online tracker.Patterns vary in different parts of the country, but a handful of states—Arkansas, Montana, North Dakota, West Virginia, Wisconsin, and Wyoming—set new records for weekly cases, according to a USA Today analysis.
Others reported record death numbers, including Kansas, North Dakota, South Dakota, and Wyoming.Trump, Redfield clash on vaccine, mask assessmentsYesterday at a