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時間:2022-08-18 來源:本站 點擊:258次
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Ticket sales for Africa Cup of Nations set to begin in December******

YAOUNDE, Nov. 25 (Xinhua) -- The tickets for the Africa Cup of Nations to be held in Cameroon next year are set to go on sale from December.。

The competition's Local Organizing Committee said on Wednesday that it has agreed with the Confederation of African Football to sell the tickets online and in established kiosks in the country.。

"Tickets shall be sold on the limited number of fans prescribed by the Confederation of African Football across the different stadia. This is in conformity with the anti-COVID-19 measures. We are equally taking the necessary measures to ensure that there exists no black market for tickets though out the African football mass," the committee said in a statement.。

The tournament, which features 24 teams, is set to commence on January 9 with hosts Cameroon taking on Burkina Faso at the 60,000-seat Olembe stadium in the capital Yaounde.。

The biennial competition will end on February 6. Enditem。

Omicron in Europe before South Africa reported first cases******

AFP

Travelers from South Africa are tested for the coronavirus on arrival in a specially designed test street at Schiphol airport, on November 30, 2021. Dutch health authorities said on November 30 that the new COVID-19 variant was already present in the Netherlands a week before a cluster of cases on two flights from South Africa. The Omicron cases were discovered on November 19 and 23 and authorities are checking whether they had links to southern Africa, and how far the new strain has spread.

The Omicron coronavirus variant was present in Europe before the first cases were reported in South Africa, new data from the Netherlands showed Tuesday, as Latin America reported its first two cases in Brazil.

In the week since the new virus strain was reported to the World Health Organization by South Africa, dozens of countries around the world have responded with travel restrictions – most targeting southern African nations.

But the World Health Organization warned Tuesday – as Canada expanded its restrictions to also include Egypt and Nigeria – that "blanket" travel bans risked doing more harm than good.

And the likely futility of broad travel restrictions was underscored as Dutch authorities reported that Omicron was present in the country before South Africa officially reported its first cases, on November 25.

The new variant – whose high number of mutations the WHO believes may make it more transmissible or resistant to vaccines – was found in two Dutch test samples from November 19 and 23, with one having no travel history.

With countries now on alert for the Omicron variant, a clearer picture is emerging by the day of where it has been circulating, and for how long.

So far, well over a dozen countries and territories have detected cases, including Australia, Britain, Canada, Israel, Italy and Portugal.

Among European countries, Belgium and Germany have both reported cases of the new strain prior to November 25, but both linked to foreign travel.

Latin America reported its first two cases Tuesday – in people who traveled from South Africa to Brazil – and a first case was confirmed in Japan, one day after it barred all foreign arrivals.

Vaccine-resistant?

While much is still unknown about the Omicron variant – it could take weeks to determine whether and to what extent it is vaccine-resistant – it has highlighted that the global fight against COVID-19 is far from over.

Asian, European and US markets all fell on Tuesday, while the benchmark US oil price tumbled more than five percent after the boss of vaccine manufacturer Moderna warned existing jabs might be less effective against the new variant.

"All the scientists I've talked to ... are like 'this is not going to be good'," Moderna boss Stephane Bancel told the Financial Times, warning against a "material drop" in the effectiveness of current jabs against Omicron.

Moderna, US drugmaker Pfizer and the backers of Russian vaccine Sputnik V are already working on an Omicron-specific vaccine.

On the treatment front, meanwhile, a panel of US health experts voted Tuesday to endorse Merck's COVID pill for high-risk adult patients, which is already authorised in Britain.

'Heavy burden'

In a briefing to WHO member states, the body's chief Tedros Adhanom Ghebreyesus said it was understandable for countries to seek to protect their citizens "against a variant we don't yet fully understand."

But he called for the global response to be "calm, coordinated and coherent", urging nations to "take rational, proportional risk-reduction measures."

The UN agency cautioned in a travel advisery that "blanket" travel bans risked placing a "heavy burden on lives and livelihoods" and could ultimately dissuade countries from sharing data about the evolving virus – as South Africa did in reporting the latest variant.

But it did advise that people not fully vaccinated and considered vulnerable to COVID-19, including over-60s, should put off travel to areas with community transmission of the virus – after correcting a previous statement that indicated all over-60s should defer travel.

Tougher measures

Omicron has emerged as much of the world was already bracing for a new winter wave of the pandemic – leaving even nations with high vaccination rates scrambling to stem infections and prevent health services from being overwhelmed.

Governments, particularly in western Europe, have already reintroduced mandatory mask-wearing, social-distancing measures, curfews or lockdowns – leaving businesses fearing another grim Christmas.

In Germany, incoming Chancellor Olaf Scholz said parliament would vote on making COVID vaccines compulsory by the end of the year – and a source from Scholz's party told AFP he had "signalled his sympathy" for such a rule.

Greece went ahead Tuesday in making vaccines compulsory for over-60s, while Norway will offer booster shots to all adults before Easter, as preferable to a lockdown.

Britain meanwhile set a target of delivering third jabs to all adults within two months, with Prime Minister Boris Johnson saying vaccination centers would be "popping up like Christmas trees."

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陕西疾控:HPV感染普遍发生大多两年内自动清除 仅小部分会发展******

3月4日是第五届国际HPV知晓日,陕西省疾控中心提示,全面客观的认识HPV、HPV相关疾病和HPV疫苗,不盲目跟风、不信谣传谣,建立积极正确的信念态度,养成健康行为方式,走稳科学预防HPV每一步。

我国妇科门诊就诊者HPV 阳性率为23.5%

20世纪80年代德国病毒学家发现了人乳头瘤病毒(HPV)与宫颈癌之间的关系,由此拉开了近20年来科学家们对HPV疫苗的研发序幕。但至今公众对HPV和HPV疫苗的认知依然较低,HPV及HPV疫苗的科学普及之路还很漫长。

哪些人会感染HPV?HPV主要通过性生活或密切接触传播,HPV感染是最常见的生殖道病毒性感染。研究显示,有性行为的男性和女性一生中感染HPV的几率高达85%-90%。因此,HPV感染是普遍发生的。但是,人群的HPV感染率却因多种因素不同有高低之分。

哪些部位会感染HPV?HPV是一种无包膜的双链DNA病毒,具有高度的嗜上皮特点,只选择性感染皮肤、黏膜上皮细胞。因此,除了人们熟知的子宫颈外,阴道、外阴、肛门、阴茎、口腔、口咽、喉和皮肤均是HPV容易感染的部位。

宫颈HPV感染检查阳性是否一定会发展为宫颈癌?我国妇科门诊就诊者HPVDNA的总体阳性率为23.5%(17种高危HPV型和10种低危HPV型),意味着接近四分之一在妇科门诊筛查的女性面临宫颈HPV阳性的结果,异常的宫颈筛查结果往往会给病人带来沉重的心理负担。

事实上,大多数子宫颈HPV感染是短暂的,会在12-24个月内清除,约2-5%女性(多为30岁以上)会发生HPV持续感染。高危型HPV持续感染,可能会导致从1-3级CIN(宫颈上皮内瘤变)到浸润性宫颈癌的发生,这一过程通常需要10-15年。感染期间随着HPV的清除,病变也会被人体自动清除,仅小部分会发展为高级别病变和浸润性癌。

此外,WHO和国内外对子宫颈癌筛查异常结果的管理都发布了规范化的指南。科学了解宫颈癌筛查结果的意义,到正规医院就医,可以减少不必要的焦虑。

目前发现的HPV有200多种型别,多数的感染是良性和自限性的。

根据明确的致癌潜力将主要的14种HPV型分为高危型别(HPV 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58,59)和低危型别(HPV 6和11型)。HPV型别的区分主要基于L1ORF基因的291bp片段,不同HPV型别间L1基因(编码主要衣壳蛋白L1)的差异超过10%。

HPV疫苗的价是指疫苗所包含的病毒样颗粒(VLPs)所覆盖的HPV型别数量,。基于HPV疫苗通过刺激机体产生特异性中和抗体从而预防相应型别HPV感染所致疾病的作用原理和临床试验所验证的疫苗效力,目前各国不同价次HPV疫苗获批的适应症仅限于疫苗所涵盖型别。

预防HPV感染只需要接种HPV疫苗就够了?HPV可以感染包括子宫颈在内的多个人体部位,但目前HPV感染主要是针对子宫颈癌有比较完善的包括以HPV疫苗、健康教育和建立安全性行为为主的一级预防,以子宫颈癌筛查和癌前病变治疗为主的二级预防和治疗子宫颈浸润癌为主的三级预防措施,其他部位HPV相关感染和癌症的疫苗预防随着HPV疫苗适应症的不断扩大正逐步解锁,但尚缺乏系统性的综合防控策略。

作为一级预防的重要一环,HPV疫苗的保护效果已经在上市前的临床试验和上市后的真实世界研究中得到了验证,但与所有疫苗一样,HPV疫苗并不能确保对所有接种者均产生保护作用,且HPV疫苗也未涵盖所有的HPV型别,因此不论是否接种HPV疫苗,定期的子宫颈筛查都是预防子宫颈癌必不可少的重要措施。

华商报记者 李琳


来源:华商网-华商报

编辑:方正

China League One side Chang'an Athletic win two in a row under caretaker coach Feng******

XI'AN, Dec. 1 (Xinhua) -- Shaanxi Chang'an Athletic defeated Beijing Sports University 2-0 on Tuesday in the 28th round of the 2021 China League One, the country's second-tier football league.。

After receiving Ma Junliang's low pass in the box, Kingsley Onuegbu broke the deadlock for Chang'an Athletic in the 54th minute.。

Although Robert Tambe missed a bicycle shot opportunity in the 61st minute, Du Changjie's close-range shot found the net, allowing Chang'an Athletic to extend their lead.。

"We weren't in good situation in the first half, so I made some alterations in the half break," Chang'an caretaker coach Feng Feng commented. "I asked my players to do low passes patiently, and it worked in the second half."

In January 2021, Oscar Cespedes Cabeza was appointed as the head coach of Chang'an Athletic. But the Spaniard's management company announced that Oscar was no longer Chang'an Athletic's head coach in October.。

Feng briefly took up Oscar's place and made his debut on October 14 by defeating Hebei FC of the Chinese Super League (CSL) 1-0 in the last 32 of the 2021 Chinese FA Cup.。

Chang'an Athletic is yet to make a formal announcement about their new head coach. According to a source close to the club, the team may not appoint a new head coach until the end of the season.。

Chang'an Athletic is currently sixth in the China League One standings with six games left on the calendar. Enditem。

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