Pennsylvania Veterinary Laboratory, Harrisburg
Regular Business Hours are Monday - Friday, 8:00 am - 4:00 pm
The Laboratory will be closed for the holidays listed below: however, we advise calling the Laboratory in advance of dropping off samples due to inclement weather or other unforeseen schedule changes.
- Jan 1, 2026:
- Closed
- Jan 19, 2026:
- Closed
- Feb 16, 2026:
- Closed
- May 25, 2026:
- Closed
- Jun 19, 2026:
- Closed
- Jul 3, 2026:
- Closed
- Sep 7, 2026:
- Closed
- Oct 12, 2026:
- Closed
- Nov 11, 2026:
- Closed
- Nov 26-27, 2026:
- Closed
- Dec 25, 2026:
- Closed
- Jan 1, 2027:
- Closed
If you have time sensitive testing needs, please call ahead and discuss with Client Services (717-787-8808). Shipping to other PADLS sites from PVL will be available as long as the receiving laboratories are able to receive and test specimens.
Animal Diagnostic Laboratory, State College
Regular Business Hours are Monday - Friday, 8:00 am - 5:00 pm
The Laboratory will be closed for the holidays or operate with modified hours on the following business days:
- Jan 1, 2026:
- Closed
- Jan 19, 2026:
- Closed
- May 25, 2026:
- Closed
- Jun 19, 2026:
- Closed
- Jul 3, 2026:
- Closed
- Sep 7, 2026:
- Closed
- Nov 26-27, 2026:
- Closed
- Dec 24, 2026:
- 8:00 am - noon
- Dec 25, 2026:
- Closed
- Dec 28-31, 2026:
- 8:00 am - noon
- Jan 1, 2027:
- Closed
New Bolton Center, Kennett Square
Regular Business Hours are Monday - Friday, 8:00 am - 4:00 pm
The Laboratory and Manheim Field Office will be closed for the holidays as below:
- Jan 1-2, 2026:
- Closed
- Jan 19, 2026:
- Closed
- May 25, 2026:
- Closed
- Jun 19, 2026:
- Closed
- Jul 3, 2026:
- Closed
- Sep 7, 2026:
- Closed
- Nov 26-27, 2026:
- Closed *
- Dec 25, 2026
- Closed *
- Jan 1, 2027
- Closed *
* PADLS New Bolton Center traditionally operates on a modified schedule during the University's Holiday Break.
Please note the following changes in our operating hours through the end of the year.
- Avian Pathology:
- Nov 26-27, 2026 and Dec 25, 2026-Jan 1, 2027: closed and not accepting birds for necropsy examination;
please contact Dr. Davison (610-636-1683) with any questions.
- Avian Serology:
- Nov 26-27, 2026: closed; The last day to submit blood/serum samples is Tuesday, Nov 24, 2026
- Dec 25, 2026 through Jan 1, 2027: closed; The last day to submit blood/serum samples is Tuesday,
Dec 22, 2026; the last day to receive egg samples is Thursday, Dec 17, 20026
- PEQAP:
- Nov 26-27, 2026: Closed; the last day for environmental samples acceptance for PEQAP, FDA and NPIP is
Nov 20, 2026. There will be no new testing of environmental samples for PEQAP, FDA and NPIP during the
week of Nov 23-27, 2026. Testing will resume on Nov 30, 2026; please plan accordingly.
- Dec 25, 2026 through Jan 1, 2027: closed; the lab will stop accepting environmental samples for PEQAP,
FDA and NPIP testing on Dec 18, 2026. There will be no new testing of environmental samples until
Jan 4, 2027; please plan accordingly.
- Clinical Microbiology:
- Nov 26, 2026: closed
- Nov 27 and 28, 2026: operating in support of hospital cases 10 am - 2 pm. The last day for Coggins/EIA
testing will be Nov 24, 2026.
- Microbiology will have limited hours over the holiday break in support of hospital cases. The Lab
will be CLOSED Dec 25, 2026, Dec 29, 2026, Dec 31, 2026, and Jan 1, 2027. The Lab will be OPEN 10 am
- 2 pm on Dec 26, 2026, Dec 28, 2026, Dec 30, 2026, and Jan 2, 2027. NO mail or courier shipments will
be received. Samples must be hand delivered to the drop-off area at the hospital front desk. No
Coggins/EIA testing will be performed during the break. The last day for Coggins submissions will
be Dec 22, 2026.
- Molecular Biology:
- Nov 26-27, 2026: Closed; samples submitted after the courier has left on the morning of Nov 25, 2026 will
not be delivered to NBC until Nov 30, 2026.
- Dec 25, 2026 through Jan 1, 2027: closed; no Avian Molecular testing will be performed during the holiday
break.
- The Mammalian Molecular Diagnostic service will be operating on Monday, December 28, 2026 and Friday,
January 1, 2027 from 10 am-12 pm in support of New Bolton Center hospital cases only; for same day testing
and reporting of these results, drop off samples no later than 10 am on the above dates.
- Manheim Field Office:
- Nov 26-27, 2026: closed; samples submitted after the courier has left on the morning of Nov 25, 2026
will not be delivered to NBC until Nov 30, 2026.
- Dec 25, 2026 through Jan 1, 2027: closed; samples submitted after the courier has left on the morning of
Dec 24, 2026 will not be delivered to NBC until courier service resumes on Jan 4, 2027.
- Mammalian Pathology (autopsy and biopsy services):
- Nov 26-27, 2026 and Dec 24, 2026 through Jan 1, 2027: limited operations. Please call New Bolton Center
at 610-444-5800 to speak with the on-call pathologist to make arrangements for any autopsy or rabies
submissions, or with any questions regarding urgent biopsy submissions.
- Toxicology:
- Nov 26-27, 2026: closed
- Dec 25, 2026 through Jan 1, 2027: closed
- Chronic Wasting Disease Diagnostics:
- Nov 26-27, 2026: closed
- Dec 25, 2026 through Jan 1, 2027: closed; samples are only accepted on a prearranged, dropoff only, basis
during the winter holiday. To make arrangements for sample dropoff, please contact Michelle Gibison at
mlucey@vet.upenn.edu.
Keystone Animal Diagnostic Center, Monaca
Regular Business Hours are Monday - Friday, 8:00 am - 5:00 pm
The Laboratory will be closed for the holidays or operate with modified hours on the following business days:
- Nov 26-27, 2026:
- Closed
- Dec 24, 2026 -
Jan 1, 2027:
- Closed