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1918 flu pandemic had a trial run

Sally Furniss

Well-known member
1918 flu pandemic had a trial run
Anybody have a subscription to New Scientist? Hat-tip, Kobie!

1918 flu pandemic had a trial run
26 January 2008
Magazine issue 2640

THE flu pandemic that struck in the autumn of 1918 killed tens of millions worldwide. But it now seems that it had a widespread, and much milder, trial run.

Scandinavian health statistics record an unseasonable outbreak of flu in the summer of 1918. People who caught it were only a tenth as likely to die as those stricken in the autumn, but those who did catch it were mainly young adults - a hallmark of the autumn outbreak and a strong indication that the summer virus was closely related to it (The Journal of Infectious Diseases, DOI: 10.1086/524065).

Previous studies have shown that the autumn virus spread relatively slowly. It had been hoped that this was a general feature of pandemics, because it would mean that "social distancing" measures such as closing schools could prevent deaths.

However, the Scandinavian figures suggest that the autumn virus spread ...

http://www.newscientist.com/channel...04.900-1918-flu-pandemic-had-a-trial-run.html
 
Re: 1918 flu pandemic had a trial run

1918 flu pandemic had a trial run
gsgs said:
that was the first wave in summer, or not ?
This isn't new.

Also, the autumn wave did spread very fast, not slowly.
 
Re: 1918 flu pandemic had a trial run

Originally Posted by gsgs
that was the first wave in summer, or not ?
This isn't new.

Also, the autumn wave did spread very fast, not slowly.

It appears to be the first wave.

I don't recall any studies saying the Autumn wave spread slowly. Anecdotal stories say it was fast.
 
Re: 1918 flu pandemic had a trial run

From the article cited above:

(...) That summer wave accounted for 29%-34% of all excess ILIs and hospitalizations during 1918, whereas the case-fatality rate (0.3%) was many-fold lower than that of the fall wave (2.3%).

Similar patterns were observed in 3 other Scandinavian cities. R was substantially higher in summer (2.0-5.4) than in fall (1.2-1.6) in all cities.



Conclusions.

The Copenhagen summer wave may have been caused by a precursor A/H1N1 pandemic virus that transmitted efficiently but lacked extreme virulence.

 
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