U.S. funded discovery of close COVID-19 relative at the center of origins controversy Karolina Corin | June 16, 2023 Share https://usrtk.org/covid-19-origins/us-funded-discovery-of-close-covid-19-relative/ Copy Email X Facebook LinkedIn WhatsApp Bluesky Threads Reddit Telegram Print U.S. funded the discovery of RaTG13, the closest relative of Covid-19 known before the pandemic began.