Here is the notice from AMNH:
The American Museum of Natural History remains closed to the public to maintain health and safety during the COVID-19 pandemic at least through April 3, with weekly reassessments during
this unprecedented situation.
As of March 17, the closure extends to scientific staff and facilities, including scientific collections and laboratories. Incoming and outgoing loans have been suspended, and institutions
should not ship collections back or return specimen loans at this time.
Researchers may continue to access collections information online, as well as news and future announcements via the AMNH public website at https://www.amnh.org/research
If you have questions, feel free to reach out. Like everyone, we hope everyone is safe during this unprecedented time.