Two countries—China and Singapore—are taking massive testing steps to tamp down COVID-19 resurgences, as cases continued to soar in Russia, now the country with the third-highest number of cases.The global total today climbed to 4,239,872 cases, and 290,390 people have died from COVID-19, according to the Johns Hopkins online dashboard.China, Singapore use massive testing against resurgenceWuhan, China's former epicenter, recently reported its first cluster of cases after the end of its lockdown, and the city announced all residents will be tested over a 10-day period, Reuters reported.
The city is home to about 11 million people.The city's lockdown ended on Apr 8, and a Chinese state media outlet said the government official in the