PTI.Health experts say even if they are successful, the certification process for the United States, Europe, Japan and other developed countries might be too complex for them to be used there.However, China said it will ensure the products are affordable for developing countries.Mainland China reports 18 new casesMainland China reported 18 new Covid-19 cases on 5 December, up from 17 cases from a day earlier, the country's national health authority said on Sunday.The National Health Commission said in a statement that 17 of the new cases were imported infections.
The number of new asymptomatic cases, which China does not classify as confirmed cases, fell to 2 from 12 a day earlier.The number of confirmed COVID-19 cases in Mainland China.