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Workers in protective suits sprayed disinfectant through the streets in southern China after the coronavirus lockdown was lifted in the region.
Clouds of disinfects blew through the streets of Zhangjiajie in the Hunan Province after workers were deployed to the area on August 25.
Footage later showed hundreds of residents emerging from their homes with flags in their hands as they celebrated the easing of Covid-19 restrictions.
The scenes come after some 1.5million residents were ordered to remain in their homes in the tourist destination of Zhangjiajie, near Zhuzhou, on July 29 following an outbreak of the fast-spreading Delta variant. Read More
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Accurate medical recordkeeping is a major challenge in many low-resource settings where well-maintained centralized databases do not exist, contributing to 1.5 million vaccine-preventable deaths annually. Here, we present an approach to encode medical history on a patient using the spatial distribution of biocompatible, near-infrared quantum dots (NIR QDs) in the dermis. QDs are invisible to the naked eye yet detectable when exposed to NIR light. QDs with a copper indium selenide core and aluminum-doped zinc sulfide shell were tuned to emit in the NIR spectrum by controlling stoichiometry and shelling time. The formulation showing the greatest resistance to photobleaching after simulated sunlight exposure (5-year equivalence) through pigmented human skin was encapsulated in microparticles for use in vivo. In parallel, microneedle geometry was optimized in silico and validated ex vivo using porcine and synthetic human skin. QD-containing microparticles were then embedded in dissolvable microneedles and administered to rats with or without a vaccine. Longitudinal in vivo imaging using a smartphone adapted to detect NIR light demonstrated that microneedle-delivered QD patterns remained bright and could be accurately identified using a machine learning algorithm 9 months after application. In addition, codelivery with inactivated poliovirus vaccine produced neutralizing antibody titers above the threshold considered protective. These findings suggest that intradermal QDs can be used to reliably encode information and can be delivered with a vaccine, which may be particularly valuable in the developing world and open up new avenues for decentralized data storage and biosensing. Read More
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The Biden White House is in chaos after twin blasts rocked Kabul airport on Thursday. There were two explosions reported outside the Kabul Airport on Thursday.
The bombings took place near the Baron Hotel where the US and UK used as a meeting place for stranded citizens on their way out of the country. FOUR US soldiers are dead and at least 3 US troops are wounded, a US official said.
The number of casualties is unknown. Joe Biden’s meeting with Israeli Prime Minister Naftali Bennet was postponed indefinitely after the explosions in Kabul. Read More
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Biden to perpetrators of Kabul attacks: "We will not forgive. We will not forget. We will hunt you down and make you pay" https://t.co/jmOHmUJVks pic.twitter.com/a4ssQY6pq0
— Bloomberg Quicktake (@Quicktake) August 26, 2021
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