China's National Health Commission announced (May 18) that testing has been ramped up. Citing Hubei as an example, Xinhua said the province had 11 institutions capable of conducting nucleic acid tests at the beginning of February. Now there are 216 such institutions. It claimed also that as tests have been ramped up, the ratio of people testing positive has dropped dramatically. Between April 1 and April 7, Hubei conducted nucleic acid tests on 272,317 people and found that 8.5 of every 10,000 people were asymptomatic carriers of the virus. That ratio dropped to 1.7 for every 10,000 people tested between April 8 and May 17. In the past week, Hubei conducted nucleic acid tests on 1,530,000 people, and found only 0.46 asymptomatic cases for every 10,000 people tested.