Virus vaccines manufacturing · Delaware
Intervet Inc. (DBA - Merck AH) - Millsboro Sites
Millsboro, DE · ~365 workers · 8 years of OSHA Injury Tracking Application data.
- A
- Excellent Safety Record
- 1.4
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
Intervet Inc. (DBA - Merck AH) - Millsboro Sites runs at 44% of its industry's injury rate - far safer than the typical Virus vaccines manufacturing workplace, earning a grade A.
- A
- Excellent Safety Record
- 1.4
- avg TCR · per 100 workers
- 3.3
- industry benchmark (BLS)
- 38
- recordable injuries tracked
Grade compares Intervet Inc. (DBA - Merck AH) - Millsboro Sites's OSHA Total Case Rate of 1.4 to the Virus vaccines manufacturing BLS benchmark of 3.3 (44% of benchmark) across 8 years of Form 300A filings (2016–2024). <a href="/methodology">See methodology</a> for reporting-limitation caveats.
Injury rate over time
Intervet Inc. (DBA - Merck AH) - Millsboro Sites's yearly Total Case Rate, against the 3.3 industry benchmark.
Where Intervet Inc. (DBA - Merck AH) - Millsboro Sites falls in its industry
282 Virus vaccines manufacturing establishmentsSafer than 33% of graded establishments in this industry, whose median TCR is 1.0.
Trend analysis for Intervet Inc. (DBA - Merck AH) - Millsboro Sites
Between 2016 and 2024, Intervet Inc. (DBA - Merck AH) - Millsboro Sites's Total Case Rate improved from 2.6 to 0.7 recordable injuries per 100 full-time workers, a 74% decrease across 8 years of OSHA reporting.
The safest year on record was 2020, at a TCR of 0.5, while 2016 saw the highest rate, at 2.6, a spread of 2.0 points between the best and worst reporting years. That's a wide swing relative to the establishment's overall rate, worth checking the year-by-year table below for whether a single severe year is driving the average, rather than a sustained trend.
Summed across those 8 reporting years, Intervet Inc. (DBA - Merck AH) - Millsboro Sites recorded 38 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 8-year trend above alongside establishment size, since a larger workforce naturally accumulates more raw incidents even at a lower per-100-worker rate.
Verify This Employer with OSHA
The 38 injuries, 2 illnesses shown on this page for Intervet Inc. (DBA - Merck AH) - Millsboro Sites are sourced from its own 8 years of mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source, name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.
Verify on OSHA Establishment SearchSource: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 325414 - Virus vaccines manufacturing.
DART Rate, Transparent Calculation (2024)
What is the DART rate formula?
DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.
1 DART incidents × 200,000 ÷ 886,018 hours worked = 0.23 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| Intervet Inc. (DBA - Merck AH) - Millsboro Sites (this establishment) | 1.44 | OSHA ITA Form 300A, 8-year avg |
| Vaccines (i.e., bacterial, virus) manufacturing industry avg | 3.30 | BLS IIF, NAICS 325414 |
| Delaware state avg (all industries) | 4.69 | OSHA ITA, state-level rollup |
Industry benchmarks: Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (IIF) program
Reportable Incident Timeline
Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by Intervet Inc. (DBA - Merck AH) - Millsboro Sites to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.
- 2024: 3 reportable incidents · 3 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2023: 3 reportable incidents · 3 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2022: 8 reportable incidents · 8 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2020: 2 reportable incidents · 2 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2019: 9 reportable incidents · 8 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2018: 5 reportable incidents · 5 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2017: 3 reportable incidents · 3 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2016: 7 reportable incidents · 6 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
Source: OSHA Inspection Information System (IMIS) - inspection case-number records
Year-by-Year Safety Data
| Year | TCR | DART | Injuries | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2024 | 0.7 | 0.2 | 3 | 0 | 0 |
| 2023 | 0.7 | 0.7 | 3 | 0 | 0 |
| 2022 | 1.9 | 1.6 | 8 | 0 | 0 |
| 2020 | 0.5 | 0.5 | 2 | 0 | 0 |
| 2019 | 2.5 | 1.9 | 8 | 1 | 0 |
| 2018 | 1.6 | 1.6 | 5 | 0 | 0 |
| 2017 | 1.1 | 1.1 | 3 | 0 | 0 |
| 2016 | 2.6 | 2.2 | 6 | 1 | 0 |
What this grade means for you
Use this grade as a relative read on Intervet Inc. (DBA - Merck AH) - Millsboro Sites's reported OSHA injury record, strong versus its Virus vaccines manufacturing peers, but not a guarantee about any single site today.
- At 44% of the Virus vaccines manufacturing benchmark, Intervet Inc. (DBA - Merck AH) - Millsboro Sites reports fewer injuries than typical peers, still worth asking how safety is managed day to day. Know your rights
- Judge this record against the wider Virus vaccines manufacturing sector, where injury rates vary widely, before comparing it in isolation. See the industry
- Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another
Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.
Frequently Asked Questions
What is Intervet Inc. (DBA - Merck AH) - Millsboro Sites's safety grade?
How many injuries has Intervet Inc. (DBA - Merck AH) - Millsboro Sites reported?
Similar Employers
Matched by safety record across the industry, by workforce size within Delaware, and by nearby establishments in Millsboro - a different peer set than the category browse links below.
Similar TCR (~1.4)
Similar size (~365 workers)
Read our methodology - how this data is sourced, computed, and verified.
Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.