John Mackenzie , a senior expert at WHO , accused them of keeping `` the figures quiet for a while because of some major meeting they had in Wuhan , '' alleging that per was a `` iod of very poor reporting , or very poor communicationion '' in early January.19 January , four days before the city 's lockdown , a wan jia yan ( ) was held in Wuhan , with over 40,000 families turning out ; this attracted retrospective criticism .
John Mackenzie , a senior expert at WHO , accused China of keeping the figures quiet during the 2019–20 coronavirus pandemic .