China has reported no new domestically transmitted cases since early August, but it remains on high alert.
China also said it will take further “reciprocal measures against American journalists”, without giving specifics.
The coronavirus death toll has reached nearly 1,400 in mainland China.
The number of reported cases has been rising more quickly after the hardest-hit province changed its method of counting them Thursday.
The new virus outbreak has killed at least 811 people in mainland China.
Police forced the doctor to sign a statement claiming he was spreading falsehoods about the coronavirus, which later took his life.
Dr. Li Wenliang was reprimanded by police for "spreading rumors" about the deadly virus, which he contracted himself.
The semiautonomous territory reported its first coronavirus death this week.
“We have launched a people’s war of prevention of the epidemic," President Xi Jinping said.
The virus outbreak has killed 132 people and infected more than 6,000 people in the Chinese mainland and abroad.