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Monday 29 July 2013

Fwd: PRO/AH/EDR> Influenza (43): USA (IN, OH) A(H3N2)v

Posted by Rob LW 


INFLUENZA (43): USA (INDIANA, OHIO), A(H3N2)V
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ProMED-mail is a program of the
International Society for Infectious Diseases
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Date: Sun 28 Jul 2013
Source: Global Dispatch, Outbreak News [edited]
<http://www.theglobaldispatch.com/indiana-and-ohio-report-new-h3n2v-human-swine-flu-cases-brings-total-to-14-for-2013-2013/>


In a follow up to a 4 Jul 2013 report, the Centers for Disease Control
and Prevention (CDC) says 2 new human infections with influenza A
(H3N2) variant (H3N2v) virus were reported to CDC during week 29, one
in Indiana and one in Ohio. This brings the total cases this year
[2013] to 14, with Indiana reporting 13 cases.

The CDC reports no hospitalizations or deaths have occurred. In
addition, no ongoing human-to-human transmission has been identified,
and all 14 cases have reported close contact with swine in the week
prior to illness onset. CDC officials add: "Additional cases may be
identified as the investigation continues." The Ohio Department of
Health reminded its citizens to practice good hygiene when visiting
livestock exhibits this summer [2013], in a recent new release.

"Individuals should always wash hands with soap and water before and
after petting or touching any animal. Never eat, drink, or put
anything in your mouth in animal areas. Parents and caregivers are
encouraged to leave strollers outside the animal exhibits and carry
small children. Older adults, pregnant women, young children, and
people with weakened immune systems should consider avoiding animal
areas," health officials said.

Type A influenza viruses, including H3N2 and H3N2v, commonly infect
swine, causing outbreaks among swine herds. Most of the type A
influenza viruses that infect swine are genetically very different
from human (seasonal) influenza viruses. While these variant influenza
viruses seldom infect humans, such infections can and do occur. In
fact, influenza viruses can spread both from swine to humans and from
humans to swine.

Out of the 2012 total of 309 H3N2v cases, Indiana and Ohio accounted
for the bulk of the cases with 138 (45 percent) and 107 (35 percent)
cases, respectively.

[Byline: Robert Herriman]

--
Communicated by:
ProMED-mail from HealthMap Alerts
<promed@promedmail.org>

[It is clear that the A/H3N2v virus is still widespread in swine in
the states of Indiana and to a lesser extent Ohio. However, the number
of infections occurring as a consequence of visits to livestock fairs
appears to have declined, indicating that previous warnings are being
heeded. No instance of human-to-human transmission has been recorded
so far. - Mod.CP

HealthMap/ProMED-mail maps for Indiana and Ohio can be accessed at:
<http://healthmap.org/r/2qty> and <http://healthmap.org/r/2uyX>,
respectively.]

[see also:
Influenza (40): USA, A(H3N2)v, CDC Health Advisory 20130706.1810766
Influenza (39): USA (IN) A(H3N2)v, alert 20130627.1795810
2012
----
Influenza (29): H3N2v cross-reactive antibodies 20120412.1099325
Influenza (28): USA (UT), H3N2v isolation 20120412.1098447
Influenza (25): H3N2v, pathogenesis & transmission 20120407.1093271
Influenza (12): H3N2v pandemic potential 20120222.1049306
Influenza (29): H3N2v cross-reactive antibodies 20120412.1099325
Influenza (28): USA (UT), H3N2v isolation 20120412.1098447
Influenza (25): H3N2v, pathogenesis & transmission 20120407.1093271
Influenza (12): H3N2v pandemic potential 20120222.1049306
2011
----
Influenza (78): USA, swine-origin H3N2 reassortants update
20111224.3669
Influenza (76): USA, two novel influenza A viruses 20111210.3563
Influenza (74): swine-origin H3N2 reassortant, vaccine candidate
20111203.3526
Influenza (72): Europe, swine-origin H3N2 reassortant, risk assessment
20111130.3494
Influenza (71): USA (IA) swine-origin H3N2 reassortant, WHO
20111125.3448
Influenza (70): USA (IA) swine-origin H3N2 reassortant 20111124.3438
Influenza (69): USA (IA) swine-origin H3N2 reassortant 20111123.3430
Influenza (68): Hong Kong swine-origin H3N2 reassortant 20111119.3411
Influenza (66): USA swine-origin H3N2 reassortant, update
20111105.3298
Influenza (63): USA (ME, NOT NH) corr. 20111106.3307
Influenza (63): USA (ME, NOT NH) swine-origin H3N2 reassortant
20111102.3260
Influenza (60): USA (ME) swine-origin H3N2 reassortant 20111021.3134]
.................................................sb/cp/msp/dk
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