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Volume 22, Number 5—May 2016
Research

Acute Human Inkoo and Chatanga Virus Infections, Finland

Niina PutkuriComments to Author , Anu Kantele, Lev Levanov, Ilkka Kivistö, Markus Brummer-Korvenkontio, Antti Vaheri, and Olli Vapalahti
Author affiliations: University of Helsinki, Helsinki, Finland (N. Putkuri, L. Levanov, I. Kivistö, M. Brummer-Korvenkontio, A. Vaheri, O. Vapalahti); Helsinki University Hospital, Helsinki (A. Kantele, A. Vaheri, O. Vapalahti)

Main Article

Table 1

Serum samples screened for California serogroup virus IgM and IgM-positive samples, by patient group and date of collection, Finland, 2001–2013*

Patient group and date of sample collection† Serum samples, no. IgM-positive samples, no. IgM prevalence, %
Suspected Puumala virus infection
2001 May 25−Sep 4 1,294 2 0.15
2004 Jun 14–Sep 1 958 1 0.10
2012 Jun 5–Aug 21 498 2 0.40
2013 May 16–Sep 26 824 0 0
Total
 3,574
 5
 0.14
Neurologic symptoms
2003 Jun 2–Sep 29 711 2 0.28
2004 Jun 10–Sep 17 868 2 0.23
2005 Jun 23–Oct 1 969 2 0.21
2007 Jun 20–Aug 30 563 0 0
2012 Jun 8–Oct 15 1,103 3 0.27
Total
 4,214
 9
 0.21
Suspected Inkoo virus infection
2004 32 1 3.13
2005 30 0 0
2006 21 0 0
2007 31 0 0
2008 11 0 0
2009 15 0 0
2010 16 0 0
2011 14 0 0
2012 3 0 0
Total
 173
 1
 0.58
All patient groups
 7,961
 15
 0.19
*Samples from patients were initially screened for Puumala virus, for agents causing neurologic infections, or Inkoo virus. Indirect immunofluorescence was used to screen for California serogroup virus IgM.
†Sample collection for suspected Inkoo virus infection was for the entire year.

Main Article

Page created: April 13, 2016
Page updated: April 13, 2016
Page reviewed: April 13, 2016
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