WUHAN, China — The World Health Organization experts have visited an animal disease center in the Chinese city of Wuhan as part of their investigation into the origins of the coronavirus pandemic.

A team member says they met with staff in charge of the health of livestock in Hubei province, toured laboratories and had an “in-depth” discussion with questions and answers.

Meanwhile, WHO officials in Geneva were pushing back against suggestions the team was not getting enough access or data. The officials said the agency was continuing to ask for more data. They also said the team planned to visit the Wuhan Institute of Virology, considered among the major sources of information about the origins of the coronavirus.