CNBC reports that the number of coronavirus cases in Germany has increased by 4,615, taking the tally to 61,913, according to the latest data by Robert Koch Institute.

Italy's health ministry reported that as of 6 p.m. local time on March 30, there were at least 101,739 total cases of infection among its 60 million citizens.

David Nabarro, a special envoy on COVID-19 to the World Health Organization, told CNBC that countries need to act fast and stop the coronavirus outbreak before it grows into an exponential problem.

Global cases: More than 786,228

Global deaths: At least 37,820

Top 5 countries: United States (164,603), Italy (101,739), Spain (87,956), China (82,240), and Germany (66,885)