The head of the World Health Organization warned Friday of a resurgence of novel coronavirus infections in Europe and the United States, saying the northern hemisphere is "at a critical juncture.""We are at a critical juncture in this pandemic, particularly in the northern hemisphere," WHO Director General Tedros Ghebreyesus told a press conference."The next few months are going to be very tough and some countries are on a dangerous track," the WHO chief said, urging leaders to take action "to prevent further unnecessary deaths, essential health services from collapsing and schools shutting…READ FULL ARTICLE