Originally published in 2020; the immediate COVID-19 emergency has receded, but the on-set molecular testing model continues for productions, athletic events, festivals, and live shoots that need rapid, controlled-timeline screening for respiratory pathogens.
Pro-Lab Diagnostics deployed a high-complexity molecular laboratory inside a mobile trailer parked on a major film studio production. The workflow — rapid nucleic-acid extraction followed by LAMP amplification on the Optigene Genie® HT — produces a positive/negative call in roughly 30 minutes per batch, with HIPAA-compliant reporting and an on-site Clinical COVID Compliance Officer (CCO). The result: cast and crew get cleared the same morning instead of waiting one to two days for an off-site reference lab.
Key Facts
- On-set, high-complexity molecular lab — full extraction-to-detection workflow inside a self-contained trailer.
- ~30-minute turnaround after the swab reaches the trailer (extraction + isothermal amplification).
- LAMP chemistry on Optigene Genie® HT — single-temperature amplification, real-time fluorescence detection, no thermal cycler required.
- HIPAA-compliant in-house software for collection management, result reporting, and chain of custody.
- Clinical COVID Compliance Officer (CCO) on site to manage protocol adherence and confidentiality.
- Built for SAG-AFTRA "Safe Way Forward" — now extended to athletic events, festivals, and corporate testing.
The Problem: Off-Set Lab Delay vs. the Call Sheet
Film productions run on a daily call sheet. When the COVID-19 testing requirement landed under SAG-AFTRA's Safe Way Forward framework, productions suddenly had to add a step that didn't fit the schedule: a swab on Monday morning could not realistically be cleared for work until a hospital reference lab returned a result 24 to 48 hours later. The alternative — letting cast and crew work while yesterday's swab was still in transit — exposed the entire production to a positive case discovered after exposure had already happened.
Daniel Portillo, COO of Pro-Lab Diagnostics, framed the conflict bluntly at the New Orleans deployment: "Productions are pressured to stay on budget, produce their movies, and ensure that everyone is getting COVID tested." Those three constraints could not all be satisfied with an off-site lab in the loop.
The Trailer Setup
The mobile unit is a self-contained, high-complexity molecular laboratory built into a trailer that parks on-site at the production base camp. Inside, it carries the full extraction-to-amplification workflow normally found in a stationary clinical molecular lab — sample accessioning, biosafety-cabinet sample prep, magnetic-bead or column-based nucleic-acid extraction, and a bank of Optigene Genie® HT isothermal amplification instruments running LAMP chemistry.
Sample collection happens at a tent or check-in station immediately outside the trailer. A nasopharyngeal or anterior-nares swab is logged into the in-house collection software, barcoded, and handed through to the lab side. From that point the workflow is identical to a hospital molecular lab — just compressed into one vehicle.
The LAMP Workflow: Extraction → Genie HT → Result in ~30 Minutes
The chemistry is what makes the trailer model possible. Loop-mediated isothermal amplification (LAMP) runs at a single temperature near 65°C — no thermal cycling, no temperature ramping, no PCR-grade environmental controls. That eliminates most of the infrastructure that locks a standard RT-PCR lab into a fixed building.
- Extraction (~10 minutes). Swab eluate is processed on a magnetic-bead platform such as Pro-Mag on the Mag Pro-32 automated extractor (32 samples per run), or a silica-column workflow with Pro-Spin for smaller batches. Either path delivers purified RNA ready for amplification.
- Amplification & detection (~20 minutes). Extracted RNA is added to a LAMP mastermix and loaded onto the Optigene Genie® HT. The instrument holds the reaction at the isothermal temperature and reads fluorescence in real time. A positive call typically resolves well inside 20 minutes.
- Result release. The call is pushed into the HIPAA-compliant in-house software; the CCO releases a cleared/not-cleared status to the production's check-in desk.
The Operational Benefit
The decisive difference is not the chemistry, it's the geometry. A swab collected at 6:00 a.m. at the check-in tent produces a result by approximately 6:30 a.m. — before talent reaches the trailer. There is no courier, no hospital lab queue, no overnight wait. The production knows by the morning briefing who is cleared to work that day.
That same compression matters anywhere a fixed schedule meets an off-site lab. Beyond film productions, the trailer model has served athletic events, festivals, public-health initiatives, and corporate testing programs. Pro-Lab also operates a drive-through testing facility in Round Rock, Texas, available seven days a week.
Client Confidentiality
Every step is governed by HIPAA. Collection records, accessioning data, and results live inside Pro-Lab's in-house software — never on production-side spreadsheets. The on-site CCO is the only role authorized to release status to the production, and what the production receives is the operational answer they need (cleared / not cleared) rather than underlying medical data. Productions are named in press only with their explicit permission; the testing program assumes confidentiality by default.
Why It Still Matters in 2026
The public-health context has changed — the federal COVID-19 emergency declaration ended in 2023, and routine on-set testing requirements have been substantially relaxed. The operational model the trailer pioneered, however, has not gone away. Productions still occasionally need rapid respiratory screening during outbreaks; live events still need it during flu and RSV peaks; tournaments still need it on tight timetables. The combination of an on-site trailer, isothermal LAMP chemistry, and a Clinical Compliance Officer remains the fastest way to keep a fixed schedule and a clinical-grade test result in the same building.
Frequently Asked Questions
What kind of test does the mobile trailer run?
The trailer runs a molecular nucleic-acid amplification workflow built around loop-mediated isothermal amplification (LAMP) on the Optigene Genie® HT platform. Sample extraction is followed by isothermal amplification with real-time fluorescence detection, producing a positive/negative call in roughly 30 minutes from the time the swab reaches the trailer.
Why use LAMP instead of standard RT-PCR on set?
LAMP runs at a single temperature (around 65°C) and does not require the thermal-cycling hardware or controlled environment of an RT-PCR lab. That makes the workflow rugged enough for a trailer, and the per-sample run time is much shorter — about 20-30 minutes after extraction rather than 60-90 minutes of cycling plus queue time at a hospital lab. See our deeper write-up of the Advantages of LAMP.
How does on-site testing reduce production delay?
Off-site reference labs typically return results in 24-48 hours. On a film set that means cast and crew either wait one to two days before they can work, or they work while their previous swab is still in transit. The on-set trailer collapses that loop to under an hour, so daily call sheets are not held hostage to courier and lab queues.
Is patient information confidential?
Yes. Results are recorded in HIPAA-compliant in-house software, and the on-site Clinical COVID Compliance Officer (CCO) manages chain of custody. Productions receive only the cleared / not-cleared status they need for the day's call sheet; underlying medical data stays with the testing program.
Does this model still operate now that the COVID-19 emergency has ended?
Yes. The trailer was built for the SAG-AFTRA Safe Way Forward era, but the on-set molecular testing model continues for productions, athletic events, festivals, and corporate testing programs that need rapid screening for respiratory pathogens on a controlled timeline.
To talk about LAMP-based on-site testing or the Optigene Genie® platform, contact info@pro-lab.us or book a call with a Pro-Lab scientist.