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Exacerbation of demyelinating syndrome after exposure to wireless modem with public hotspot.

Electromagnetic biology and medicine · 2016 · Harm · Very low evidence

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HarmVery low evidencePaper 4849

A 48-year-old woman reported recurrence of neurologic symptoms after installation of a wireless modem with a public hotspot in a nearby apartment; symptoms reportedly stopped after the modem was replaced with a router without hotspot feature and recurred when…

Study snapshot

PublicationElectromagnetic biology and medicine · 2016
Study typecase_report
Reported directionHarm
Evidence ratingVery low

Abstract

In August 2003, 48-year-old JS of Colorado, USA, a fitness therapist and sports nutritionist, contracted neuroinvasive West Nile virus which left her with disabilities due to spinal axonal damage.In August 2014, she suddenly developed symptoms very much like her acute West Nile infection 11 years ago, including focal seizures, ataxia, vertigo and headaches. Her blood count looked normal so there was no obvious infection. What struck her as odd was that when she left her apartment for any length of time, the symptoms stopped. She found out that a new type of wireless modem, enabled for both personal use and functioning as a public hotspot designed to reach up to 100 m, had been installed in the flat under hers.Her neighbor replaced the modem with a router without the hotspot feature. After that, the seizures stopped immediately, and the other symptoms faded gradually, after which she was fine and again could sleep well. Later, when another activated hotspot was installed in an adjacent flat, JS once again noticed symptoms.A possible association between electrohypersensitivity, myelin integrity and exposure to low-intensity radiofrequency electromagnetic fields (RF-EMF) typical in the modern world has recently been proposed. Since the West Nile virus attacks both the nerve cells and the glial ones, one explanation to the above observed case effects is that the initial virus attack and the wireless modem's RF-EMF affect the nervous system through the very same, or similar, avenues, and maybe both via the oligodendrocytes.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typecase_report
Effect directionharm
Population48-year-old woman (Colorado, USA) with prior neuroinvasive West Nile virus and spinal axonal damage
Sample size1
ExposureRF
Evidence strengthVery lowConfidence: 74% · Peer reviewed: yes

Main findings

A 48-year-old woman reported recurrence of neurologic symptoms after installation of a wireless modem with a public hotspot in a nearby apartment; symptoms reportedly stopped after the modem was replaced with a router without hotspot feature and recurred when another activated hotspot was installed nearby.

Outcomes measured

  • Focal seizures
  • Ataxia
  • Vertigo
  • Headaches
  • Sleep disturbance
  • Recurrence/exacerbation of neurologic symptoms resembling prior West Nile infection

Limitations

  • Single case report
  • Exposure not quantified (no frequency, power density, SAR, or measurements reported in abstract)
  • Temporal association only; causality cannot be established
  • Potential confounding factors not described in abstract
  • Outcome assessment appears based on self-report in abstract
View raw extracted JSON
{
  "study_type": "case_report",
  "exposure": {
    "band": "RF",
    "source": "wireless modem/public hotspot",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": "48-year-old woman (Colorado, USA) with prior neuroinvasive West Nile virus and spinal axonal damage",
  "sample_size": 1,
  "outcomes": [
    "Focal seizures",
    "Ataxia",
    "Vertigo",
    "Headaches",
    "Sleep disturbance",
    "Recurrence/exacerbation of neurologic symptoms resembling prior West Nile infection"
  ],
  "main_findings": "A 48-year-old woman reported recurrence of neurologic symptoms after installation of a wireless modem with a public hotspot in a nearby apartment; symptoms reportedly stopped after the modem was replaced with a router without hotspot feature and recurred when another activated hotspot was installed nearby.",
  "effect_direction": "harm",
  "limitations": [
    "Single case report",
    "Exposure not quantified (no frequency, power density, SAR, or measurements reported in abstract)",
    "Temporal association only; causality cannot be established",
    "Potential confounding factors not described in abstract",
    "Outcome assessment appears based on self-report in abstract"
  ],
  "evidence_strength": "very_low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "case report",
    "RF-EMF",
    "wireless modem",
    "public hotspot",
    "electrohypersensitivity",
    "demyelinating syndrome",
    "seizures",
    "West Nile virus",
    "oligodendrocytes"
  ],
  "suggested_hubs": [
    {
      "slug": "electrohypersensitivity",
      "weight": 0.86,
      "reason": "Abstract discusses a possible association with electrohypersensitivity and symptom changes with hotspot exposure."
    }
  ]
}
AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.3109/15368378.2015.1107839
PubMed: 27355805

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