Three-hundred samples of powdered infant formula milk and related products from four different manufacturers in 2010 were collected and surveyed their contaminations for aerobic bacteria, coliform, Enterobacter (Cronobacter) sakazakii, and food-borne pathogens. Fifteen samples of sterilized infant formula milk were all negative on these microorganisms. In all collected products of unsterilized infant formulas and follow-on infant formulas,aerobic bacteria were detected at 239 (83.9%) among 285 samples, and they all were found below 10³ cfu/g. Coliform bacteria were also detected at four among 285 samples. Salmonella spp. and Ent. sakazakii, weren't detected at the all samples. Bacillus cereus was detected at 24 (8.4%) among 285 samples. The level of B. cereus was below 100 cfu/g but it was suitable for the range of specification of B. cereus in infant formulas. Clostridium perfringens, Escherichia coli O157:H7, Staphylococcus aureus and Listeria monocytogenes weren't also detected. In consequence, it was suitable for total viable count, coliform and potential pathogen to the specification of infant formulas and related products.

Purpose- This paper aims to examines the various factors Influencing Sales of Infant Formula Milk in China under the Covid-19 Pandemic, and base on this analysis, to present some measures for the sellers and consumers. Design/methodology- The 846 number of comments for 84 bands form e-commerce platform was taken as the index reflecting consumers’ purchasing behavior, and the properties of various types of infant formula milk (commodity name, gross weight and milk source) were taken as the independent variables to analyze the influencing factors of purchasing behavior of infant formula milk by multiple regression method. Findings- The important factors influencing the purchase behavior of infant formula milk are that product name, source of milk, domestic or imported products, applicable age, and packing unit. And then Consumers tend to buy 200-500yuan barrels of imported infant formula milk. Originality/value – The originality of this study can be found in its context, that is, under the Covid-19 Pandemic. At present, China has achieved the best epidemic control effects, which creates a great opportunity for Chinese brand infant formula milk to go abroad and realize internationalization in the future.