Thursday, November 14, 2013

Cambodian MOH Announces Two New H5N1 Cases

 

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# 7974

 

 

Although we picked up an FAO EMPRES-i report on these cases two days ago (see H5N1: Watching Cambodia Again),  this morning the Cambodian Ministry of Health has posted a joint statement (with the World Health Organization) detailing their 25th and 26th H5N1 case of the year.

 

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The Ministry of Health  (MoH) of the Kingdom of Cambodia wishes to advise members of the public that two new  human  cases of avian influenza have been  confirmed for the H5N1  virus. These are the 25th and 26th cases this year and the 46th  and 47th people to become infected with the H5N1 virus  in Cambodia.

Case 25  is  from  Kampong Speu province  and  case 26 was from  Pailin  province. The Kampong  Speu case  is currently  in  a critical condition whereas  the  Pailin  case  has  died. Of  the  47 confirmed  cases, 35  were children under  14, and 27 of  the 47 were female.  In  addition, only  13 cases out of  the 26 cases this year survived.

 
The 25th case,  a 3-year-old boy from Veal Vong village, Sendey commune, Samrong Tang district, Kampong Speu province, was confirmed positive  for H5N1  human  avian influenza on 9"November  2013 by  Institut Pasteur du Cambodge. The boy had onset fever on 5th November  2013, his parents sought treatment at a local private practitioner on  6th November,  but  his condition worsened.The boy was admitted to  KanthaBopha Hospital, Phnom  Penh, on 8th November  2013 with  fever, cough, and dyspnoea. Laboratory samples were taken on 8th November  and Tamiflu administered the same day.

The 26'  case, a 29-year-old male from KaunDemrei village, SteungTrang  commune, Salakrao district, Pailin province, was  confirmed  positive  for H5N1  human  avian  influenza by  Institut Pasteur du  Cambodge on 9th November  2013. The man  had  onset fever,  chills and  headache on 26'  October 2013 where he  sought treatment at the local health centre. Treatment was provided to the case at a private clinic on  1st November until  his condition  continued  to  deteriorate. On  3rd November  the  case  was  admitted  to  Battambang Provincial hospital  with  fever,  chills,  headache,  cough,  chest  pain.  Laboratory  samples were  taken  and Tamiflu was administered on 6th November.  He continued to deteriorate with  further symptoms of diarrhoea, vomiting, and seizures; he died at the hospital on the 6 th November.


Epidemiological investigations by  the RRT and MAFF revealed  that  the case had  direct contact with  sick and dead poultry  one week  prior  to  illness onset. During  the  investigation multiple  influenza like  illness cases were  detected  in  the  village;  laboratory testing  of  those  cases  to  date  indicated  human  influenza A/H1N1.

The Ministry of Health's RRTs and the Ministry of Agriculture, Forestry and Fishery's Animal Health Task Force are working  together closely inboth villages to investigate and implement control measures. The RRTs are trying to  identify the case's  close contacts, any epidemiological linkage among the 26 cases and  initiate preventive treatment as required.The Animal Health Task Force  is  investigating cases of poultry deaths in
the village.

(Continue . . . )

 

This makes five cases reported out of Cambodia over a period of a little more than two weeks.

 

Since these cases have all come from different provinces, it makes it likely that these are sporadic transmissions from birds or the environment rather than a sign of increased human-to-human transmission. 

 

2005 – 4 cases                     2010 – 1 case

2006 – 2 cases                     2011 – 8 cases

2007 – 1 case                       2012 - 3 cases

2008 – 1 case                       2013 – 26 cases

2009 – 1 case           

 

For now, H5N1 remains poorly adapted to humans - only rarely being passed from one person to another - and is primarily a threat to poultry.

 

But when we see upticks in human cases like this one, it is a reminder that emerging influenza viruses are an ongoing threat, and that we need to watch them closely for any signs that they may be becoming better adapted to humans.