By Julia Hollingsworth, Jenni Marsh, Rob Picheta, Fernando Alfonso III and Amir Vera, CNN
From CNN’s Yoko Wakatsuki in Tokyo
Japan has raised its travel alert for the United States, urging citizens to not go there unless it is essential.
The alert was raised to level two, the Japanese Foreign Ministry announced on Sunday. Four is the highest alert level.
Meanwhile, the United States is warning its citizens to avoid non-essential travel to Japan.
The United States has more than 25,000 coronavirus cases, while Japan has just over 1,000 cases.
Australia has more than 1,000 coronavirus cases, and the country is introducing a number of measures to deal with the outbreak.
Here's what has been happening in Australia:
Sydney's home state shuts non-essential services: New South Wales -- the state where Sydney is located -- will close most services and businesses to try to slow the spread of the virus. Essential services, such as petrol stations, convenience stores and pharmacies, will stay open. New South Wales has 469 confirmed cases, the highest of any Australian state.
A new economic support package: Australia has announced a second support package, this time worth $38 billion, to help households and businesses.
Another state gets tough: South Australia's Premier Steven Marshall said Sunday that a spike in confirmed cases from travelers entering the state had "forced our decision to close our borders in South Australia." But while Marshall called it a border closure, in fact the state is still open -- arrivals will just need to self-isolate for 14 days. The new measures will be "progressively enforced between now and 4pm on Tuesday."
Meanwhile, elsewhere: Northern Territory and the island state of Tasmania require all travelers to self-isolate for 14-days upon entry. Tasmania is offering one-off payments of $250 for individuals, or up to $1,000 for families, required to self-isolate.
More countries in Africa have started to report their first novel coronavirus cases.
Here's what has been happening in Africa.
Eritrea, Uganda and Angola report first coronavirus cases:
New restrictions:
Read more about attempts in Africa to stop the spread here.
Indian Prime Minister Narendra Modi tweeted on Sunday that citizens should "stay indoors and stay healthy." His comments came as the country's janata curfew -- or citizens' curfew -- began at 7 a.m. local time.
Everyone except those in working in essential services has been asked to self-isolate for the day.
Earlier this week, Modi asked all Indians to stand on their balconies, or at their windows and doors, at 5 p.m. local time Sunday for five minutes to express their gratitude towards emergency service workers for working tirelessly during the outbreak.
From CNN's Anna Kam in Hong Kong
Singapore announced on Sunday that it will close its borders to short-term visitors and travelers transiting though the the major aviation hub starting Monday.
"There has been a further sharp increase in cases globally and widening spread," the Ministry of Health announced in a statement, adding that the majority of the new cases were "imported cases."
Singapore residents and work-permit holders have to self-isolate for 14 days after entering the city state.
Singapore has 432 confirmed cases of the virus, and recorded 2 deaths.
This year's Ice Hockey World Championship has been cancelled due to the coronavirus pandemic, the International Ice Hockey Federation (IIHF) announced Saturday.
The tournament had been due to take place in Switzerland in May.
IIHF President René Fasel said it was a "harsh reality to face" for international ice hockey, but one that "we must accept.”
“The coronavirus is a global problem and requires major efforts by government bodies to combat its spread. The IIHF must do all it can to support this fight.
"We have to set sport aside for now and support both the government bodies and the ice hockey family.”
The refund policy for ticket holders will be clarified as soon as possible, the IIHF said.
From CNN’s Isaac Lee in Hong Kong
The Australian state of New South Wales will shut down all "non-essential services" in an attempt to slow the spread of the novel coronavirus.
"Tonight I will be informing the National Cabinet that NSW will proceed to a more comprehensive shutdown of non-essential services," NSW Premier Gladys Berejiklian said in a statement Sunday.
Essential services and stores, such as petrol stations, convenience stores and pharmacies, will remain open. The shutdown will take place over the next 48 hours.
Sydney -- Australia's biggest city -- is the capital of New South Wales.
New South Wales has 469 confirmed novel coronavirus cases, the highest of all Australian states. Australia has more than 1,000 cases of coronavirus.
From CNN’s Jake Kwon in Seoul
South Korea has confirmed 98 new cases of coronavirus, the Korea Centers for Disease Control and Prevention (KCDC) said on Sunday.
This brings the number of cases in the country to 8,897, with 104 deaths due to the virus.
The coronavirus death toll in Italy has risen by 793 in the past 24 hours to 4,825, the Italian Civil Protection Agency said Saturday.
That was an almost 20% on Friday’s figure and was the biggest one-day spike since the outbreak began.
The worst-affected region is Lombardy, where 3,095 people have died from the virus.
Italy's confirmed cases total rose by 6,557 to 53,578.
Higher than China: Italy's death toll is now higher than that of China, where the outbreak started.
According to China's National Health Commission, the country has had 81,054 confirmed cases and 3,261 deaths. In mainland China, 72,244 people have recovered and been discharged from hospital.