At that time, since the outbreak began in Wuhan, there had been 698 tests resulting negative for the disease.[7] Two further cases were confirmed on 4 March, one having travelled from Italy and the other having had contact with a known carrier.[8][9] Three further cases were confirmed on 5 March[10] and by 6 March, the number of confirmed cases had increased to 11.[11] This had more than doubled to 23 cases by 9 March, out of 2,101 tests conducted.[12]