| | Biogen Inc (BIIB.O) and Japanese partner Eisai Co (4523.T) said on Wednesday the U.S. Food and Drug Administration had granted breakthrough therapy designation to their experimental therapy, lecanemab, for patients with early Alzheimer's. | | | Tunisia has detected six cases of the Delta COVID-19 variant, first detected in India, the health ministry said on Wednesday, amid a rapid spread of the virus in the North African country. | | | The U.S. National Institutes of Health (NIH) said on Wednesday it had begun a study to evaluate the immune responses generated by COVID-19 vaccines in pregnant or postpartum women. | | | 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 has vaccinated half of its 47 million population with at least one dose and nearly 32%, or over 15 million people, have been fully inoculated, the Health Ministry said on Wednesday. | | | A Brazilian Health Ministry official has revealed that he alerted President Jair Bolsonaro to internal pressure he was facing to buy a COVID-19 vaccine developed by India's Bharat Biotech, according to a newspaper interview on Wednesday. | | | The share of COVID-19 infections caused by the more easily transmitted Delta variant of the coronavirus has doubled in Germany in a week and is likely to gain more traction over other variants, the Robert Koch Institute public health agency said on Wednesday. | | | France's highest appeals court on Wednesday overturned a ruling that stores in the country can't legally sell cannabidiol (CBD), a non-psychotic compound related to cannabis that is being researched for a variety of medical applications. | | | Kazakhstan will introduce mandatory COVID-19 vaccination or weekly testing for people working in groups of more than 20, its health ministry said on Wednesday. | | | Biogen Inc (BIIB.O) and partner Eisai Co Ltd (4523.T) said on Wednesday they were working to speed up completion of a confirmatory trial of their controversial Alzheimer's drug that was recently given an accelerated approval by the U.S. drug regulator. | | | | |