[ad_1] <br><img src="https://cdn.cnn.com/cnnnext/dam/assets/200922161221-02-boris-johnson-0922-hp-video.jpg" /><br>UK Prime Minister to Trump: Follow doctors' advice <br>[ad_2] <br><a href="https://edition.cnn.com/politics/live-news/trump-covid-19-updates-sunday/h_1142c74a4ce664e23cf14699f3157499">CNN </a>