San Francisco saw its biggest increase yet in cases of COVID-19, with 19 new positive tests reported Thursday, bringing the total to 70.

It had jumped from 40 on Monday to 43 Tuesday and 51 on Wednesday. Just south of San Francisco, the number of coronavirus cases San Mateo County increased to 89 with nine additional confirmations on Thursday.

As San Francisco’s total climbed to 70, the country on Thursday broke the 10,000 mark, with 10,442 cases, according to the latest information from the Centers for Disease Control and Prevention. The state department of public health announced the total number of cases in California had risen to 675, with 16 deaths.

Only New York (4,597) and Washington (1,187) have more confirmed cases.