University Of Pennsylvania Researchers Map COVID-19 Hotspots Through Tweets 0 07.05.2020 01:51 Forbes.com Penn A team of researchers here has been collecting tweets in the United States related to the COVID-19 outbreak to help map hotspots by keeping an eye on the symptoms mentioned. Moscow.media Частные объявления сегодня Rss.plus Все новости за 24 часа