TAIPEI -- Taiwan has reported new COVID-19 cases for an eighth consecutive day, with its total infections rising to 568, the island's epidemic monitoring agency said on Nov 4.

A Taiwan woman, who returned from Poland, tested positive for COVID-19 Wednesday, the agency said in a press release.

Among the confirmed cases in Taiwan, seven died, 521 recovered, and 40 others remain hospitalized, according to the agency.

Meanwhile, Taiwan has received notices about 52 people who were diagnosed with COVID-19 elsewhere shortly after leaving the island since the first such case in June, the agency said.

A total of 1,855 people were identified to have contacts with them in Taiwan, and 1,297 of them have tested negative as of now, it added.

The agency also warned local people against traveling outside Taiwan, considering the worsening COVID-19 pandemic, particularly in Europe and the United States.

From Nov. 9, the island will tighten quarantine measures on international travelers who had suspicious symptoms over the past 14 days, the agency said.

Such travelers will get tests upon their arrival at the airport and stay in a designated quarantine center before the results are out. Those who test negative should take a second test at least a day later, and those who pass two tests, and have their symptoms easing, should be reviewed by doctors before leaving the quarantine center to stay at their residence, according to the agency.