How flu spreads through air, droplets, and surfaces

Evaluating Modes of Influenza Transmission using a Randomized Controlled Trial (EMIT-2-RCT)

NIH-funded research Univ of Maryland, College Park · NIH-11103251

This project compares whether influenza spreads mainly through the air, droplets, or contaminated surfaces to help protect adults.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionUniv of Maryland, College Park NIH-funded
Lab location1 site (College Park, United States)
Project IDNIH-11103251 on NIH RePORTER

What this research studies

You'll take part in a controlled experiment where adults interact under different ventilation and contact conditions while researchers collect breath samples, surface swabs, and clinical monitoring. The team uses a device called the Gesundheit-II to measure virus in exhaled breath and combines those measurements with surface and contact sampling. Participants are randomized to different room ventilation and contact scenarios so researchers can link exposure routes to who becomes infected and how sick they get. The overall aim is to show which routes and environmental factors most affect transmission risk.

Who could benefit from this research

Good fit: Adults aged 21 and older who are willing to participate in controlled influenza exposure and monitoring at the study site.

Not a fit: People younger than 21, pregnant people, immunocompromised individuals, or those unable or unwilling to undergo controlled exposure and monitoring are unlikely to benefit from participation.

Why it matters

Potential benefit: If successful, this work could lead to clearer guidance on ventilation, masks, and cleaning to reduce flu spread.

How similar studies have performed: Previous laboratory and smaller human studies have suggested infectious aerosols are important, but this randomized design to directly compare routes is relatively novel.

Where this research is happening

College Park, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Community-Acquired Infections
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.