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Étiqueté : Wuhan

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[Viêt Nam] Nghiên cứu mới: Dịch Covid-19 xuất phát từ chợ Vũ Hán, Trung Quốc

Deux études, l’une sur l’épidémiologie et l’autre sur la génétique, confirment que la pandémie de Covid-19 est bien partie d’un marché d’animaux sauvages de la ville de Wuhan (Wuhan), province du Hubei, en Chine. Le gouvernement de Pékin a nié à plusieurs reprises cette possibilité et a même largement propagé que la Chine est victime d’un virus venant de l’étranger.

Une femme passe devant le marché aux animaux de Huanan à Wuhan, le 12 janvier 2020, après sa fermeture en raison de la découverte du coronavirus. © Noël Celis, AFP 0

The Huanan Seafood Wholesale Market in Wuhan was the early epicenter of the COVID-19 pandemic

Understanding how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in 2019 is critical to preventing zoonotic outbreaks before they become the next pandemic. The Huanan Seafood Wholesale Market in Wuhan, China, was identified as a likely source of cases in early reports but later this conclusion became controversial. We show the earliest known COVID-19 cases from December 2019, including those without reported direct links, were geographically centered on this market. We report that live SARS-CoV-2 susceptible mammals were sold at the market in late 2019 and, within the market, SARS-CoV-2-positive environmental samples were spatially associated with vendors selling live mammals. While there is insufficient evidence to define upstream events, and exact circumstances remain obscure, our analyses indicate that the emergence of SARS-CoV-2 occurred via the live wildlife trade in China, and show that the Huanan market was the epicenter of the COVID-19 pandemic.

Couverture de l'ouvrage 133 jours à Wuhan avec un chien, un chat et la peur au ventre d'Arnaud Miguet, l'éditions de l'Aube © DR 0

[Chine] Covid-19 : “L’ambiance était effrayante”, se remémore Arnauld Miguet, correspondant en Chine pendant le confinement de Wuhan

Il était l’un des deux journalistes français présents lors du confinement à Wuhan. Deux ans après l’arrivée de la pandémie de Covid-19 en France, le journaliste Arnauld Miguet, correspondant de France Télévisions en Chine, revient sur cette crise sanitaire qui a marqué sa carrière.

WHO Director General Tedros Adhanom Ghebreyesus. @ AP 0

[Chine] Les représentants de 48 pays écrivent au chef de l’OMS pour s’opposer à la politisation de la recherche de l’origine du virus COVID-19

GENEVE, 15 juillet (Xinhua) — Les représentants permanents de 48 pays auprès l’Office des Nations Unies à Genève ont envoyé jeudi une lettre à Tedros Adhanom Ghebreyesus, directeur général de l’Organisation mondiale de la santé (OMS), en lui exprimant leur soutien aux études sur les origines du virus COVID-19 dans le monde ainsi que leur opposition à la politisation de la recherche de l’origine du virus.

Fig 1. Histogram of intervals between estimated origin dates and first cases (Origin) and between upper bounds of 95% confidence intervals and first cases (95% CI). © DR 0

Dating first cases of COVID-19

Questions persist as to the origin of the COVID-19 pandemic. Evidence is building that its origin as a zoonotic spillover occurred prior to the officially accepted timing of early December, 2019. Here we provide novel methods to date the origin of COVID-19 cases. We show that six countries had exceptionally early cases, unlikely to represent part of their main case series. The model suggests a likely timing of the first case of COVID-19 in China as November 17 (95% CI October 4). Origination dates are discussed for the first five countries outside China and each continent. Results infer that SARS-CoV-2 emerged in China in early October to mid-November, and by January, had spread globally. This suggests an earlier and more rapid timeline of spread. Our study provides new approaches for estimating dates of the arrival of infectious diseases based on small samples that can be applied to many epidemiological situations.