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2023 Vol. 5, No. 3

Preplanned Studies
Mushroom Poisoning Outbreaks — China, 2022
Haijiao Li, Yizhe Zhang, Hongshun Zhang, Jing Zhou, Jiaqi Liang, Yu Yin, Qian He, Shaofeng Jiang, Yutao Zhang, Yuan Yuan, Nan Lang, Bowen Cheng, Mei Wang, Chengye Sun
2023, 5(3): 45-50. doi: 10.46234/ccdcw2023.009
Abstract(9061) HTML (168) PDF 1466KB(69)
Abstract:
What is already known about this topic?

Mushroom poisoning is one of the most serious food safety issues in China. By the end of 2021, over 520 poisonous mushrooms had been discovered in China. The Southwest region of China was the most severely affected. Mushroom poisonings mainly concentrated in the summer and autumn months.

What is added by this report?

In 2022, China CDC conducted an investigation of 482 incidents of mushroom poisoning across 21 provincial-level administrative divisions (PLADs). This resulted in 1,332 patients and 28 deaths, with a total case fatality rate of 2.1%. A total of 98 mushrooms were identified, causing 7 different clinical types of diseases. Three provisional new species (Collybia humida nom. prov., Spodocybe venenata nom. prov., and Omphalotus yunnanensis nom. prov.) were newly recorded as poisonous mushrooms in China, in addition to 10 other species.

What are the implications for public health practice?

In view of the extensive impact and harm of poisonous mushrooms on public health, it is necessary to promote prevention and improve the ability of professionals to identify, diagnose, and treat mushroom poisoning.

Survey of Residents’ Satisfaction with the Environmental Sanitation of Key Public Places Under the Background of National Healthy City — China, 2021
Jiaxin Dong, Qiqi Wang, Jue Liu, Hongyan Yao, Xiao Qi, Jianjun Liu
2023, 5(3): 51-55. doi: 10.46234/ccdcw2023.010
Abstract(4371) HTML (130) PDF 279KB(14)
Abstract:
What is already known about this topic?

Sanitation of public places has been the focus of environmental sanitation construction in China for many years. It is critical to achieving the goal of building national healthy cities and counties.

What is added by this report?

The results showed that in all types of areas, residents’ satisfaction with the sanitation of railway stations and other places of transportation ranked first, and farmers’ markets ranked last.

What are the implications for public health practice?

This study provides a suitable reference for government decision-makers to effectively improve the sanitation situation of key public places and to further construct national healthy cities and counties.

Transmission Dynamics and Epidemiological Characteristics of the SARS-CoV-2 Delta Variant ― Hunan Province, China, 2021
Kaiwei Luo, Yanpeng Wu, Yan Wang, Ziyan Liu, Lan Yi, Shanlu Zhao, Xuemei Yan, Hao Yang, Kaiyuan Sun, Marco Ajelli, Shixiong Hu, Hongjie Yu
2023, 5(3): 56-62. doi: 10.46234/ccdcw2023.011
Abstract(3853) HTML (184) PDF 1095KB(18)
Abstract:
What is already known about this topic?

Little is known about the epidemiology, natural history, and transmission patterns of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Delta variant. Monitoring the evolution of viral fitness of SARS-CoV-2 in the host population is key for preparedness and response planning.

What is added by this report?

We analyzed a successfully contained local outbreak of Delta that took place in Hunan, China, and provided estimates of time-to-key event periods, infectiousness over time, and risk factors for SARS-CoV-2 infection and transmission for a still poorly understood variant.

What are the implications for public health practice?

Our findings simultaneously shed light on both the characteristics of the Delta variant, by identifying key age groups, risk factors, and transmission pathways, and planning a future response effort against SARS-CoV-2.

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