楚汉传奇
警惕!官方刚刚通报:我国已监测到新变异株;此前在多国迅速蔓延,最新提示_我的网站

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A farmer harvests green beans at a vegetable production base in Yantai, East China's Shandong Province, on August 21, 2024. Photo: VCGA viral internet joke about eating raw green beans for weight loss has recently put the humble vegetable in the spotlight. After news reports that a guy lost weight following food poisoning caused by undercooked beans, Chinese netizens jokingly dubbed them a "forbidden weight-loss hack." Others took the joke even further, asking — tongue firmly in cheek — exactly how undercooked the beans needed to be to achieve the "best weight loss effect."
For residents of East China's Shandong Province, however, green beans have never been a miracle diet food or an internet meme. Instead, they are an unmistakable sign that summer has arrived — and, for many families, the beginning of weeks of eating them, giving them away and wondering how on earth there are still more waiting to be picked.
The season of endless beans For Zhao Qian, a Shandong native, summer has always had a familiar color: green.
"When I was little, the moment different bean dishes started appearing on the table day after day, I knew summer had arrived," Zhao told the Global Times. "No matter how many we ate, there were always more. It was as if the vines kept producing beans overnight."
A Chinese saying goes, "Eating beans in summer is better than eating meat." Heat-loving green beans have been cultivated in China for more than one thousand years. Originally introduced from abroad, they gradually found a permanent place on Chinese dining tables thanks to their versatility, nutritional value and ability to fill hungry stomachs, according to an article published by People.cn.
Today, with the rise of greenhouse farming and an increasingly sophisticated cold-chain logistics network, fresh vegetables are available year-round across China. The old rule of eating produce only in season has largely given way to year-round abundance. Yet in Shandong, China's largest vegetable-producing province, green beans remain inseparable from summer. More than an endless seasonal harvest, they have become the taste of home for generations of locals.
One of Zhao's strongest childhood memories wasn't eating the beans, but preparing them.
"Every summer, the adults would hand me a basin full of freshly picked beans and ask me to strip off the tough strings along both sides," she recalled. "I'd sit on a little stool and work through the whole pile. It looked like an easy job, but after peeling bean after bean, my fingertips would start to hurt. By the time I finished one basin, there was always another one waiting."
For many families in Shandong, summer means an endless cycle of picking, eating and sharing green beans. In vegetable gardens, rows of trellises are soon covered in climbing vines. When the peak harvest season arrives, the beans need to be picked almost every day before they become old and fibrous. Those that cannot be finished at home are packed into bags and given to relatives, neighbors and friends.
"Your family has beans, and so does mine, but we still give them to each other," Cao Yu, a Shandong native who grew up on the Jiaodong Peninsula in East China, told the Global Times on Wednesday with a laugh.
A plentiful harvest also brings what locals jokingly call "bean freedom" to the dinner table. Sesame-dressed beans, braised beans with pork ribs and, above all, bean-filled steamed buns — a dish mentioned by almost every Shandong native interviewed by the Global Times. For many people, these dishes are no longer simply seasonal food, but the familiar taste of summer, family and hometown.
The hands that harvest summer Behind the seemingly endless harvest is another busy summer ritual — picking. For many elderly farmers, harvesting green beans means spending hours each day moving from one trellis to another, reaching through dense vines and picking bean after bean by hand.
A nail salon in Jining, Shandong Province, recently went viral after offering free "bean-picking manicures" to residents aged 60 and above. Instead of fashionable designs or glittering decorations, the salon applies thicker, longer nail extensions that make it easier to pinch and snap off the beans while protecting fingertips from pain. A coat of colored polish is added simply to help conceal stains left by vegetable sap, according to video clips circulating on Chinese social media platforms Douyin and Sina Weibo.
The salon owner, herself the daughter of farmers, said thumb injuries and damaged fingernails are common during the bean-picking process. In videos posted on her Douyin account, many elderly women said the manicures made picking beans much easier. Even more amusingly, some older men initially refused to get a manicure, only to change their minds after hearing enthusiastic recommendations from the "grandmas' group."
For perhaps the first time, beauty took a back seat to practicality, and a manicure became another way of caring for hardworking hands.
While the internet continues to joke about undercooked beans as a shortcut to weight loss, doctors stress there is nothing amusing about eating them raw. Liang Jiajing, a clinical nutritionist at the Second Affiliated Hospital of Anhui Medical University, said raw or undercooked beans contain naturally occurring toxins that can cause nausea, vomiting, abdominal pain and diarrhea, but the toxins are destroyed through thorough cooking, according to a Jimu News report.
The internet may remember green beans as the latest viral "weight-loss hack." In Shandong, however, they tell very different stories — one of overflowing harvests, bags of beans exchanged between neighbors, family recipes passed down through generations, and hardworking hands that quietly bring the harvest to the table. Long after the online jokes fade, the taste of summer — and of home — remains.
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根据美国疾病控制与预防中心(CDC),5月10日发布的数据,一种被命名为KP.2的新冠变异株目前已经取代JN.1成为美国的主要流行株。新冠KP.2变异株于今年3月在美国下水道被监测到,当时仅占新冠感染病例的1%,此后迅速蔓延。截至5月11日的两周内,KP.2变异株占到美国新冠病毒感染的28%,4月中旬这一比例仅为6%。据记者梳理,全球范围来看,KP.2变异株在全球多国开始蔓延。当地时间5月9日,据Global News报道,KP.2迅速在加拿大占据主导地位,截至4月28日,全国数据显示,KP.2占加拿大所有COVID-19病例的26.6%,超过其他JN.1亚变种。今年5月初,世界卫生组织(WHO)将KP.2亚变种列为监测中变异株。世卫组织新冠技术负责人Maria Van Kerkhove此前表示,KP.2是奥密克戎变异株JN.1的后代谱系,而JN.1是目前全球主要流行株,KP.2刺突蛋白有额外的突变。世界卫生组织表示,随着JN.1不断变异,还会衍生出新的变异株,将继续密切监测病毒的演变。5月14日,国家疾控局发布健康提示,介绍新冠病毒KP.2变异株相关情况。目前,JN.1变异株仍为全球优势流行株。我国现阶段的主要流行株构成比排在前三位的为JN.1、JN.1.16和JN.1.4,3月11日首次从广东本土病例中监测到KP.2变异株。截至5月12日,在我国本土病例中共监测到25条KP.2序列。每周报告的本土序列中KP.2占比在0.05%~0.30%之间,处于极低水平。5月13日,南方医科大学公共卫生学院生物安全研究中心主任赵卫告诉记者,考虑感染过的人群已经有一定的抗体水平和免疫屏障,所以即使有新的变异株,目前变异株感染后的症状,仍主要是轻型和无症状感染者。此外,出现新的变异株,提示我们新冠病毒并未消失,并且病毒仍在变异,从临床上来看,现在的变异株虽增加了传播优势,但是感染者的临床症状和以前的毒株没有区别,致病性目前看也没有明显增加,重症率应不会增加。图据中疾控《2023年4月全国新型冠状病毒感染疫情情况》。“KP.2变异株是JN.1的衍生株,在最外面的刺突蛋白上有两个氨基酸的点突变,导致传染性增强,这可能是其迅速成为主流变异株的主要原因,在国际上看,现在已经超过JN.1成为一些国家的主要流行毒株,正是因此,也有很多人担心引发新一轮的感染高峰,但是需要明确的是,只要致病力没有明显增加,就暂时可以不用过多担心。”赵卫解释。“从临床观察看,这一变异株株仍然和其它Omicron突变株一样,传染性极强,但致病性较弱。现阶段,病毒出现新的变异株对大家的正常生活不会有明显影响,但对于老年人和免疫低下人群仍有可能出现重症病例,所以提醒这些高风险人群应继续关注有关部门发布的信息,病毒流行期间做好个人防护。”赵卫提醒,病毒未来变异仍有可能出现更有传播优势的毒株,甚至不排除出现致病力强的毒株,要持续监测病毒变化、研发更安全有效的疫苗。
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KP.2是新冠病毒奥密克戎JN.1变异株的第三代亚分支,也是JN.1变异株中具有较强传播优势的一个亚分支,于2024年1月2日在印度采集的样本中首次监测到。
三 | 2月以来,由于KP.2在全球流行毒株中的占比增长较快,世界卫生组织于5月3日将KP.2列入“需要监测的变异株”。目前尚未检索到KP.2的致病力和免疫逃逸能力较当前流行的JN.1变异株发生明显改变的报道。
目前,JN.1变异株仍为全球优势流行株。今年以来,KP.2亚分支在全球流行毒株中的占比逐渐增加,从1月上旬的0.16%增长至5月上旬的14%左右。近期,部分国家KP.2亚分支流行程度相对较高,占比为10%~30%。
我国现阶段的主要流行株构成比排在前三位的为JN.1、JN.1.16和JN.1.4,3月11日首次从广东本土病例中监测到KP.2变异株。截至5月12日,在我国本土病例中共监测到25条KP.2序列。每周报告的本土序列中KP.2占比在0.05%~0.30%之间,处于极低水平。
KP.2新增变异位点中,有2个位于S蛋白,提示具有更强的传播力。但KP.2仍为JN.1变异株的亚分支,现有研究认为,其传播优势较JN.1变异株其他亚分支不会有大幅提升。专家研判认为,考虑到当前KP.2亚分支感染病例在我国本土病例中的占比极低,以及此前我国JN.1引起的疫情目前已经降低到较低水平,KP.2亚分支短期内成为我国优势流行株的可能性低,引发新一次感染高峰的可能性低。
与预防其他奥密克戎变异株感染一样,建议公众继续保持良好个人卫生习惯,科学佩戴口罩,坚持规律作息,保证健康饮食,提高机体免疫力。
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本文综合自:国家疾病预防控制局监测预警司、健康时报等
。
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Published on:09:52:46