Geneva: Covid vaccines reduce transmission of the dominant Delta variant by about 40 percent, the WHO said on Wednesday, warning that people were falling into a false sense of security.The World Health Organisation’s chief Tedros Adhanom Ghebreyesus urged vaccinated people to continue to take measures to avoid catching Covid-19 and passing on the disease. He noted that last week, more than 60 percent of all reported cases and deaths from Covid-19 were once again in Europe.The sheer number of...