1937 Erstfeld outbreak: Difference between revisions

From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history
m (Reverted edits by Notjusttired (talk) to last revision by Kmdenmark)
m (Text replacement - "|volume=" to " | volume = ")
 
(17 intermediate revisions by 2 users not shown)
Line 1: Line 1:
In July 1937, 130 of 930 soldiers stationed in the small town of Erstfeld, [[Switzerland]] became ill with what the time was thought to be "[[Abortive poliomyelitis]]."<ref name=":0">{{Cite journal|last=Parish|first=JG|date=1978|title=Early outbreaks of 'epidemic neuromyasthenia'|url=https://www.ncbi.nlm.nih.gov/pubmed/370810|journal=Postgraduate Medical Journal|volume=54|pages=711-7|via=}}</ref>
In July 1937, 130 of 930 soldiers stationed in the small town of Erstfeld, [[Switzerland]] became ill with what the time was thought to be "[[Abortive poliomyelitis]]."<ref name=":0">{{Cite journal | last = Parish | first = JG | date = 1978 | title = Early outbreaks of 'epidemic neuromyasthenia' | url = https://www.ncbi.nlm.nih.gov/pubmed/370810 | journal = Postgraduate Medical Journal | volume = 54 | pages = 711-7|via=}}</ref>


== Onset ==
== Onset ==
Four days after training commenced the troops were all wet through on a field exercise. Two days later, a case of [[poliomyelitis]] occurred among them and although this case was at once diagnosed and removed to hospital. This was followed within twelve days by six cases with [[meningeal]] and [[myelitic]] symptoms, 16 purely meningeal cases and 108 with symptoms involving inflammation of the upper respiratory tract. The incubation period was 4-7 days.<ref name=":1">{{Cite journal|last=Stahel|first=H|date=July 1937|title=An Epidemie of Poliomyelitis among Swiss Troops at Erstfeld from July 18 to 30, 1937, with a Large Number of Abortive Cases|url=https://www.cabdirect.org/cabdirect/abstract/19382701151|journal=Schweizerische Medizinische Wochenschrift|volume=68|pages=86-91|via=}}</ref>
Four days after training commenced the troops were all wet through on a field exercise. Two days later, a case of [[poliomyelitis]] occurred among them, this case was at once diagnosed and removed to hospital. This was followed within twelve days by six cases with [[meningeal]] and [[myelitic]] symptoms, 16 purely meningeal cases and 108 with symptoms involving inflammation of the upper respiratory tract. The incubation period was 4-7 days.<ref name=":1">{{Cite journal | last = Stahel | first = H | date = July 1937 | title = An Epidemie of Poliomyelitis among Swiss Troops at Erstfeld from July 18 to 30, 1937, with a Large Number of Abortive Cases |url =https://www.cabdirect.org/cabdirect/abstract/19382701151 | journal = Schweizerische Medizinische Wochenschrift | volume = 68 | pages = 86-91|via=}}</ref>


== Symptoms ==
== Symptoms ==


Of the 130 cases, 83 percent were had systemic symptoms and were regarded as abortive poliomyelitis<ref name=":0" /><ref name=":1" />; 12% had meningeal involvement (involvement of the lining of the brain and spinal cord); and 5% developed encephalomyelitis with [[paresis]] ([[muscle weakness]] caused by nerve damage or disease or partial paralysis).<ref name=":0" />
Of the 130 cases, 83 percent had systemic symptoms and were regarded as abortive poliomyelitis<ref name=":0" /><ref name=":1" />; 12% had meningeal involvement (involvement of the lining of the brain and spinal cord); and 5% developed encephalomyelitis with [[paresis]] ([[muscle weakness]] caused by nerve damage or disease or partial paralysis).<ref name=":0" />


Symptoms<ref name=":0" /> included:
Symptoms<ref name=":0" /> included:
Line 32: Line 32:
*[[Epidemic myalgic encephalomyelitis]]
*[[Epidemic myalgic encephalomyelitis]]
*[[List of myalgic encephalomyelitis and chronic fatigue syndrome outbreaks]]
*[[List of myalgic encephalomyelitis and chronic fatigue syndrome outbreaks]]
==Learn more==


==References==
==References==
{{Reflist}}


[[Category:Outbreaks]]
[[Category:Outbreaks]]
Line 39: Line 42:
[[Category:Outbreaks in Switzerland]]
[[Category:Outbreaks in Switzerland]]
[[Category:History]]
[[Category:History]]
<references />

Latest revision as of 16:04, April 3, 2023

In July 1937, 130 of 930 soldiers stationed in the small town of Erstfeld, Switzerland became ill with what the time was thought to be "Abortive poliomyelitis."[1]

Onset[edit | edit source]

Four days after training commenced the troops were all wet through on a field exercise. Two days later, a case of poliomyelitis occurred among them, this case was at once diagnosed and removed to hospital. This was followed within twelve days by six cases with meningeal and myelitic symptoms, 16 purely meningeal cases and 108 with symptoms involving inflammation of the upper respiratory tract. The incubation period was 4-7 days.[2]

Symptoms[edit | edit source]

Of the 130 cases, 83 percent had systemic symptoms and were regarded as abortive poliomyelitis[1][2]; 12% had meningeal involvement (involvement of the lining of the brain and spinal cord); and 5% developed encephalomyelitis with paresis (muscle weakness caused by nerve damage or disease or partial paralysis).[1]

Symptoms[1] included:

  • Sweating
  • Sensitivity to touch, pain, or other sensory stimuli
  • Diminished muscle tone was noted in those who complained of sharp pain in their legs.

Findings[edit | edit source]

The cerebrospinal fluid was normal.[1]

Epidemiology[edit | edit source]

This outbreak was notable for its high attack rate: 14% of soldiers were affected, as compared to 1.3% for a confirmed poliomyelitis outbreak in 1936.[2] (This was a common feature of epidemic myalgic encephalomyelitis that distinguished it from polio outbreaks.)

The troops had been recruited in Zurich, where a case of the disease was reported on July 11th. The epidemic did not spread to any citizens of the town. A similar epidemic was recorded in September, 1937, less than three months later, in the women's section of a St. Gallen hospital, Switzerland, less than 200 km or 125 miles away from Erstfeld.[1]

Prognosis[edit | edit source]

The meningeal and upper respiratory forms cleared up in 2-5 days and all cases recovered within five weeks. There were no deaths and no residual paralysis.[2] 

See also[edit | edit source]

Learn more[edit | edit source]

References[edit | edit source]

  1. 1.0 1.1 1.2 1.3 1.4 1.5 Parish, JG (1978). "Early outbreaks of 'epidemic neuromyasthenia'". Postgraduate Medical Journal. 54: 711–7.
  2. 2.0 2.1 2.2 2.3 Stahel, H (July 1937). "An Epidemie of Poliomyelitis among Swiss Troops at Erstfeld from July 18 to 30, 1937, with a Large Number of Abortive Cases". Schweizerische Medizinische Wochenschrift. 68: 86–91.