| | The United States is in talks with drugmaker Moderna Inc (MRNA.O) to buy more COVID-19 vaccine doses for global supply, CNBC reported on Wednesday citing a source. | | | The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus. | | | Spain's health ministry on Wednesday scrapped a nationwide plan to gradually reopen nightlife just a week after introducing it, following widespread complaints from regional authorities who dismissed it as either too strict or too loose. | | | The Czech health ministry recommended on Wednesday that only people over 60 years old should receive COVID-19 vaccines from AstraZeneca (AZN.L) and Johnson & Johnson (JNJ.N) due to a potential risk of blood clots. | | | The U.S. workplace regulator will publish a rule on Thursday requiring healthcare employers to take steps to protect workers from COVID-19, U.S. Secretary of Labor Marty Walsh told a congressional panel on Wednesday. | | | The Biden administration plans to donate 500 million Pfizer (PFE.N) coronavirus vaccine doses to nearly 100 countries over the next two years, three sources familiar with the matter told Reuters on Wednesday. | | | Greece will shorten a nighttime curfew and allow music for outdoor dining later this week, authorities said on Wednesday, taking a step further in lifting coronavirus restrictions. | | | World Trade Organization members agreed on Wednesday to start formal negotiations on a plan to boost COVID-19 vaccine supply to developing countries, but face rival proposals - one with and one without a waiver of intellectual property rights. | | | A study of side effects following vaccination with AstraZeneca's (AZN.L) anti-COVID-19 shot in Scotland found only an association with a largely harmless bleeding condition and no link to brain clots, underscoring the rarity of potential complications. | | | If the spread of COVID-19 continues at current rates it will be years before the virus is controlled in the Americas, the Pan American Health Organization (PAHO) said on Wednesday, as it called for countries to share excess vaccine doses. | | | | |