Countries in Central and South America are the most intense COVID-19 transmission zones, driven by complex factors such as crowded urban settings, and concerns are rising about the pandemic's impact on the treatment of noncommunicable diseases, World Health Organization (WHO) officials said today.The global total today climbed to 6,229,408 cases, and at least 373,973 people have died from their infections, according to the Johns Hopkins online dashboard.Cases still climbing in Latin AmericaAt a media briefing today, Mike Ryan, MD, who heads the WHO's health emergencies program, said over the past 24 hours, 5 of the 10 countries reporting the highest numbers of new cases are in the Americas: Brazil, the United States, Peru, Chile, and