Reaction profile
The FDA adverse-event record for lack of efficacy (virus) - herpesvirus nos
11 FDA reports name lack of efficacy (virus) - herpesvirus nos, a lower-volume reaction in the CVM extract (VeDDRA 2820). Plate stamps and neighbourhood peers follow.
- #2428 of 2,481
- by report volume (all reactions)
- 11
- reports citing this reaction
- 63.6%
- death-coded share
- Cattle
- most-affected species
FDA AER · VeDDRA plate
Code 2820 VOL-TRACE
VOL-TRACE · DEATH-HOT · BOTTOM-DECILE · PHOTO-FINISH · SPECIES-CATTLE · DRUG-LEAD · DESK-MID · BOOK-FULL
- VOL-TRACE 11 reports
- DEATH-HOT 63.6%
- BOTTOM-DECILE #2428/2481
- PHOTO-FINISH ABNORMAL PANCREATIC S…
- SPECIES-CATTLE Cattle · 7
- DRUG-LEAD Feline Caliciviru… · 3
- DESK-MID 7 breeds
- BOOK-FULL 8/8 fields
Nearest volume peer: ABNORMAL PANCREATIC SPECIFIC LIPASE (PLI) (±0 reports)
Upper-third death-coded share drives the outcome stamps on this plate; volume band, corpus rank, and co-report peers follow. Not a clinical diagnosis.
Lower-volume neighbourhood around Lack of efficacy - herpesvirus NOS
Lower-third volume poles plus nearest peers, not a full reaction corpus board reprint.
Lack of efficacy (virus) - herpesvirus NOS: high death-coded share in the FDA AER plate
Signature read: 11 reports place Lack of efficacy (virus) - herpesvirus NOS in the lower third of FDA AER volume (#2428 of 2,481). Report volume is lower-third scale: 11 named reports in the openFDA extract. Death-coded share is upper-third: 7 of 11 reports (63.6% of named reports). Nearest volume peer: ABNORMAL PANCREATIC SPECIFIC LIPASE (PLI) (±0 reports). Lead species Cattle (7). Lead co-reported drug Feline Calicivirus, Strain F-9, Passage 7, Lot A;Feline Viral Rhinotracheitis, S (3).
Read these counts as reporting volume, not risk: per our methodology, A high death-coded share in FDA filings does not prove causation; co-reporting is voluntary temporal association only. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.
Species Most Affected
Breeds Most Affected
Associated Drugs
What to do with this reaction
- Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
- Browse the full reaction directory to compare report counts across reaction types. All reactions
A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.
Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025
Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →