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Influenza C virus (ICV) was identified in five pediatric acute respiratory cases in Shandong. Co-infection with other respiratory viruses was detected in four of these cases. Two ICV genomes were obtained and clustered in the S1-sublineage of C/Sao Paulo/378/82, indicating that genetically diverse ICV strains have been circulating in mainland China. • Influenza C viruses of the S1-sublineage of C/Sao Paulo were reported in China. • Co-infection with other respiratory viruses was detected. • Genetically diverse ICV strains have been circulating undetected in mainland China. [ABSTRACT FROM AUTHOR]

Increasing both carbon (C) sequestration and food production is essential for a sustainable future. However, increasing soil C sequestration or graining yield/quality in rice (Oryza sativa L.) systems has been a tradeoff in that pursuing one goal may compromise the other goal. Field experiments were designed to evaluate methane emission and grain yield in two rice systems in southern China, including the traditional double rice with a seedling transplanting system and innovative ratoon rice with a direct seeding system. Grain yield, grain quality, methane (CH 4) emission, and total organic carbon (TOC) loss rate were investigated, and yield-scaled CH 4 gas emission was assessed. It is found that double rice has a higher grain yield than ratoon rice. However, the grain quality (processing, appearance of chalkiness degree and chalky grain percentage, and nutritional quality) of ratoon rice is superior to double rice, especially the ratoon crop. The yield-scaled CH 4 emission of ratoon rice (0.06 kg kg−1) decreased by 49.29% than double rice (0.12 kg kg−1) throughout the growth period. Compared with the TOC loss rate of double rice (2.95 g kg−1), the rate of ratoon rice was lower (1.97 g kg−1). As a result, ratoon rice with direct seeding can not only improve grain quality but also mitigate yield-scaled CH 4 gas emission and TOC loss rate of rice fields. Therefore, we suggest to use ratoon rice with a direct seeding technique to promote agricultural C sequestration. • Highlights (for review). • Ratoon rice with direct seeding decreased the yield-scaled CH 4 gas emission. • Ratoon rice with direct seeding mitigated the soil TOC loss rate. • Ratoon rice with direct seeding increased the grain quality. [ABSTRACT FROM AUTHOR]