By , (Reuters) - Worldwide coronavirus cases crossed 40 million on Monday, according to a Reuters tally, as the onset of winter in the northern hemisphere fuelled a resurgence in the spread of the disease.The Reuters tally is based on official reporting by individual countries. Experts believe the true numbers of both cases and deaths are likely much higher, given deficiencies in testing and potential under-reporting by some countries.The Reuters data shows the pace of the pandemic continues to pick up. It took just 32 days to go from 30 million global cases to 40 million, compared with the...…By , (Reuters) - Worldwide coronavirus cases crossed 40 million on Monday, according to a Reuters tally, as the onset of winter in the northern hemisphere fuelled a resurgence in the spread of the disease.The Reuters tally is based on official reporting by individual countries. Experts believe the true numbers of both cases and deaths are likely much higher, given deficiencies in testing and potential under-reporting by some countries.The Reuters data shows the pace of the pandemic continues to pick up. It took just 32 days to go from 30 million global cases to 40 million, compared with the...WW…