beijing china could face more than 630000 covid19 infections a day if it dropped its zerotolerance policies by lifting travel curbs according to a study by peking university mathematiciansin the report published in china cdc weekly by the chinese centre for disease control and prevention the mathematicians said china could not afford to lift travel restrictions without more efficient vaccinations or specific treatmentsusing data for august from the united states britain spain france and israel the mathematicians assessed the potential results if china adopted the same pandemic control tactics as those countrieschinas daily new cases would reach at least 637155 if it adopted the united states pandemic strategy the report saidand daily cases would hit 275793 if china took the same approach as britain and 454198 if it imitated france it saidthe estimates revealed the real possibility of a colossal outbreak which would almost certainly induce an unaffordable burden on the medical system the report saidour findings have raised a clear warning that for the time being we are not ready to embrace openup strategies resting solely on the hypothesis of herd immunity induced by vaccination advocated by certain western countriesthe mathematicians cautioned that their estimates were based on basic arithmetic calculations and that more sophisticated models were needed to study the evolution of the pandemic if travel restrictions were liftedchina has maintained a zerotolerance policy towards covid19 saying the importance of containing local cases when they are found outweighs the disruptions caused by efforts to trace isolate and treat the infected china reported 23 new confirmed coronavirus cases for nov 27 down from 25 a day earlier its health authority said on sundaythe world health organization who on friday designated a new covid19 variant detected in south africa with a large number of mutations as being of concern prompting some countries to impose travel curbs