HANOI, April 14 (Reuters) - Two people in northern Vietnam have been infected with the H5N1 bird flu virus and health authorities are carrying out tests to see if 11 others who have come down with fever have been infected.
The two who tested positive -- a 22-year-old man and a 27-month-old baby girl -- as well as the 11 suspected cases are all residents in the same commune in Bac Kan province.
"All the patients have been isolated and tests were taken to verify the reason of their sickness," said Deputy Director Luu Xuan Hoa of the Cho Moi Medical Centre in Bac Kan province.
"She (the baby) is a neighbour of the first man who has tested positive for the H5N1 virus, while others live in the same hamlet," he said.
Four people on the suspect list have been discharged.
Disease clusters are a special concern because it may mean the agent - in this case H5N1, which kills up to 60 percent of those it infects - is gaining the ability to jump from person to person.
Vietnamese media, however, reported that dead poultry had been seen in the village and that the patients had either eaten or come in contact with sick birds. This opens the possibility that the two patients may have been infected by the same source.
"We have no evidence to conclude that there is a human-to-human infection," Hoa said.
Vietnam had two bird flu deaths earlier this year - a 38-year-old woman and a three-year-old girl.
The H5N1 virus has once been a disease confined largely to birds, only rarely infecting people.
Since 2003, it has infected 493 people, killing 292, or nearly 60 percent, with Vietnam reporting 59 deaths. Almost all these infections were believed to have taken place directly from bird to human.
There have been two sizeable clusters - one in which eight family members died on the Indonesian island of Sumatra in 2006 and another in Turkey in which eight people were infected and four died.
In the Sumatra case, the virus went on for two generations and then stopped - a 37-year-old woman was believed to have infected her 10-year-old nephew, who went on to infect his father.
Another smaller probable case of human-to-human transmission occurred in Thailand in 2004, where a mother died after tending to her sick daughter for hours.
The Kyiv Post is disabling its online comment section due to an increase in trolls, violent comments and other personal attacks. Other news organizations worldwide have taken similar steps for the same reasons. The Kyiv Post regrets having to take this action. The newspaper believes in a robust public debate, but the discussion must be constructive and intelligent. For the time being, the Kyiv Post will allow comments on its moderated Facebook group https://www.facebook.com/groups/kyivpost/.
The newspaper will consider hosting online comments again when circumstances allow.
Thank you from the Kyiv Post.
Web links to Kyiv Post material are allowed provided that they contain a URL hyperlink to the
www.kyivpost.com material and a maximum 500-character extract of the story. Otherwise, all materials
contained on this site are protected by copyright law and may not be reproduced without the prior
written permission of Public Media at firstname.lastname@example.org
All information of the Interfax-Ukraine news agency placed on this web site is designed for internal
use only. Its reproduction or distribution in any form is prohibited without a written permission of