The coronavirus is continuing to spread as authorities around the world struggle to contain outbreaks. Clusters in northern Italy and Iran’s Qom province are proving particularly difficult to control.

In South Korea, more than 500 new infections were reported for a second consecutive day, with more than 2,300 confirmed cases, making it the most-affected nation outside mainland China, in terms of reported case numbers.

Here's what you should know:

Global markets are on track for their worst week since the 2008 global financial crisis, as coronavirus fears have pushed stocks down for a seventh consecutive day.

South Korean authorities are scrambling to find almost 3,000 members of a religious group, at the heart of the country’s biggest outbreak.

Sub-Saharan Africa reported its first case in Lagos, Nigeria, on Thursday, as an Italian man who works in the country tested positive. More countries are reporting first cases as well, including Lithuania, Belarus and New Zealand.

The full picture of Iran's outbreak is still unclear. It has the highest death toll outside of mainland China, with 34 reported, but only 388 cases. The viral death rate has been at around 1-2% elsewhere, suggesting that thousands of people may be carrying the virus undetected.

The Geneva Motor Show, one of the world’s biggest car shows, has been canceled because of coronavirus fears, The show is the latest in a string of international events scrapped because of the virus, including the Mobile World Congress in Barcelona that was scheduled for this month.

A plan is in the works to evacuate quarantined foreign diplomats from North Korea, a source inside the country tells CNN. The date of the evacuation flight has not been confirmed, but the source says it will likely fly from Pyongyang to Vladivostok, Russia.

The death toll is rising, with 2,867 deaths now reported in mainland China, and 79 outside.

Here's where they've happened:

Iran: 34

Italy: 17

South Korea: 13

Japan: 9

HK: 2

France: 2

Philippines: 1

Taiwan: 1