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Immune System

A confirmation study of Russian and Ukrainian data on effects of 2450 MHz microwave exposure on immunological processes and teratology in rats.

No Effects Found

de Gannes FP, Taxile M, Duleu S, Hurtier A, Haro E, Geffard M, Ruffié G, Billaudel B, Lévêque P, Dufour P, Lagroye I, Veyret B. · 2009

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This study found no immune or reproductive effects from month-long microwave exposure at levels below typical cell phone use.

Plain English Summary

Summary written for general audiences

French researchers exposed pregnant rats to 2450 MHz microwave radiation (the same frequency used in microwave ovens and WiFi) for 7 hours daily over 30 days to test whether this exposure affects immune function or causes birth defects. They found no effects on immune system markers or fetal development at the power levels tested. This study was designed to confirm earlier Russian and Ukrainian research that had suggested potential harmful effects.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 2.45 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 2.45 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 2450 MHz Duration: 7h/day, 30 days

Study Details

The aim of this study is to investigate A confirmation study of Russian and Ukrainian data on effects of 2450 MHz microwave exposure on immunological processes and teratology in rats.

In our study, a new system was constructed to expose free-moving rats under far-field conditions. Wh...

All results, using ELISA and classic teratology end points, were negative in our laboratory.

we conclude that, under these exposure conditions (2450 MHz, CW, 7h/day, 30 days, 0.16 W/kg whole-body SAR), RF-radiation exposure had no influence on several immune and degenerative parameters or on prenatal development.

Cite This Study
de Gannes FP, Taxile M, Duleu S, Hurtier A, Haro E, Geffard M, Ruffié G, Billaudel B, Lévêque P, Dufour P, Lagroye I, Veyret B. (2009). A confirmation study of Russian and Ukrainian data on effects of 2450 MHz microwave exposure on immunological processes and teratology in rats. Radiat Res. 172(5):617-624, 2009.
Show BibTeX
@article{fp_2009_a_confirmation_study_of_2997,
  author = {de Gannes FP and Taxile M and Duleu S and Hurtier A and Haro E and Geffard M and Ruffié G and Billaudel B and Lévêque P and Dufour P and Lagroye I and Veyret B.},
  title = {A confirmation study of Russian and Ukrainian data on effects of 2450 MHz microwave exposure on immunological processes and teratology in rats.},
  year = {2009},
  
  url = {https://hal.archives-ouvertes.fr/hal-00429262},
}

Quick Questions About This Study

A 2009 French study exposed pregnant rats to 2450 MHz radiation (WiFi frequency) for 7 hours daily over 30 days and found no birth defects or fetal development problems. The research specifically tested whether microwave oven and WiFi frequencies cause teratogenic effects during pregnancy.
French researchers found that 7 hours of daily 2450 MHz exposure during pregnancy had no impact on immune system markers in rats. The study used ELISA testing to measure immune parameters and found all results were negative under these specific exposure conditions.
This 2009 French confirmation study contradicted earlier Russian and Ukrainian research suggesting harmful effects from 2450 MHz radiation. The French researchers found no immune or developmental effects, highlighting potential differences in methodology or interpretation between research groups from different countries.
A controlled study using 0.16 W/kg whole-body SAR exposure found no effects on immune function or fetal development in pregnant rats. This specific absorption rate represents relatively low-level exposure compared to many consumer devices, suggesting safety at these power levels.
The 2009 study used continuous wave 2450 MHz radiation and found no prenatal development effects. While this research didn't compare continuous versus pulsed signals, the continuous wave exposure at WiFi frequencies showed no teratogenic effects in the controlled laboratory conditions tested.