Here's an alternative set of per-US-state Rt estimates from the London School of Hygiene & Tropical Medicine, with somewhat different results: https://epiforeca

Here's an alternative set of per-US-state Rt estimates from the London School of Hygiene & Tropical Medicine, with somewhat different results: https://epiforecasts.io/covid/posts/national/united-states/ https://epiforecasts.io/covid/posts/national/united-states/ They believe there's insufficient data to estimate Rt today, though, due to lags in symptoms/diagnosis/testing/reporting. So their estimates lag about 10 days, with the x-axis for the Rt-over-time graphs currently running February 17 through April 7. They also have per-country estimates: https://epiforecasts.io/covid/posts/global/ https://epiforecasts.io/covid/posts/global/