Skip to main content
Part of complete coverage on

Chicken still on menu, WHO tells China as bird flu spreads

By Ivan Watson and Hilary Whiteman, CNN
updated 2:49 AM EDT, Fri April 19, 2013
A janitor sprays disinfectant over empty chicken cages at a market in New Taipei City, Taiwan, on Monday, April 29. Asian countries have stepped up vigilance against the spread of H7N9 bird flu after a case of the deadly strain showed up in Taiwan, the first outside mainland China. A janitor sprays disinfectant over empty chicken cages at a market in New Taipei City, Taiwan, on Monday, April 29. Asian countries have stepped up vigilance against the spread of H7N9 bird flu after a case of the deadly strain showed up in Taiwan, the first outside mainland China.
HIDE CAPTION
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
Bird flu scare spreads
<<
<
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
>
>>
STORY HIGHLIGHTS
  • NEW: WHO confirms start of international investigation into bird flu in China
  • H7N9 virus has infected 87 people since March
  • Six people have recovered, 17 have died
  • Experts investigating possible human-to-human transmission

Beijing (CNN) -- The World Health Organization announced the launch of an international investigation into a new deadly strain of bird flu, as the total number of infections in China rose to 87.

"Right now it is still an animal virus that rarely infects humans," said Dr. Michael O'Leary, the head of the WHO's office in Beijing.

O'Leary said one of the goals of the mission is to determine the source of the H7N9 virus which was first discovered only three weeks ago.

Officials from the WHO, as well as experts from the U.S. and European Centers for Disease Control, are expected to investigate the virus alongside Chinese health authorities in Shanghai and Beijing in the coming days.

READ: Bird flu puts spotlight on China's food traditions

Map: H7N9 infections and deaths  Map: H7N9 infections and deaths
Map: H7N9 infections and deathsMap: H7N9 infections and deaths
Poultry markets closed over bird flu
China on high alert over bird flu
New deadly strain of bird flu in China

Five new infections of the H7N9 virus were recorded in Shanghai and nearby provinces of Jiangsu, Zhejiang and Henan.

On Thursday, the government suspended wild bird sales to try to prevent the spread of the virus, although many questions remain as to the source of infection. It follows a ban on live poultry trading in affected provinces. A large number of birds have also been slaughtered, Xinhua said.

In his statement to a room packed full of journalists, O'Leary said there was legitimate reason for concern about the new virus, but suggested it was premature to begin mass culling of poultry.

"I eat chicken every day," O'Leary said with a laugh. "Chicken is of no concern at all."

However, posts on the country's microblogging sites suggested that some users were anxious about going anywhere near poultry products.

"After H7N9, I don't even dare to eat an egg. I ate lunch box every day. I want poultry, and I want meat!!!" one wrote. Another said: "Jiaxing has H7N9 patient now, so nervous. I wasn't this nervous even during SARS."

But some were more relaxed about the potential risks: "Everyone should be careful, but I don't think it's that big deal. It's not that scary. In 2006 during another avian flu, I was in final year of high school and my parents sent me eggs every week. I ate a lot, but I'm still fine now."

Until March, the virus had only been present in birds, which is why they've become the focus of the investigation.

However, 40% of patients with H7N9 had not come into contact with poultry, according to the Chinese Center for Disease Control and Prevention.

The World Health Organization says at this stage there is "limited" evidence of human-to-human transmission.

Right now it is still an animal virus that rarely infects human
Michael O'Leary, WHO

Three clusters of infection have been identified. In each case, they involved family members living in close proximity. It was not clear whether relatives had transmitted the virus to each other, or whether they had been exposed to the same initial source of the illness.

"This becomes a different situation if the virus has human-to-human transmission," O'Leary said.

Authorities are monitoring more than 1,000 people who have come into close contact with confirmed cases.

One cluster of infection involved a family where a father and two sons fell ill.

The 87-year-old father died of the virus in March, followed soon after by his younger son. It hasn't been confirmed whether the son had the illness, according to Feng Zijian, director of the health emergency center of the Chinese Center for Disease Control and Prevention. Because he had died, further tests weren't possible, Feng added, during a press briefing on Wednesday.

The elder son was confirmed to have had the virus but has since recovered. He is one of five people who have been discharged from hospital after treatment, according to Xinhua.

So far, one boy is confirmed to have been an asymptomatic carrier of the virus, meaning he tested positive for the illness but didn't display any symptoms. The discovery of an asymptomatic carrier is worrying because it could make the spread of the infection more difficult to monitor, experts say.

The four-year old was part of a sweep of people tested for the illness because they'd come into close contact with the first reported case in Beijing.

Authorities took throat swabs from a group of people connected to 24 poultry farmers in Naidong Village, Cuigezhuang County in Beijing's Chaoyang District, according to the Beijing Municipal Health Bureau.

The WHO reported that of more than 80,000 birds tested in China, less than 40 had tested positive.

Unlike previous outbreaks of other strains of bird flu, none of the infected birds showed signs of being sick.

ADVERTISEMENT
Part of complete coverage on
updated 3:57 AM EST, Thu December 18, 2014
Chinese students show a handmade red ribbon one day ahead of the the World AIDS Day, at a school in Hanshan, east China's Anhui province on November 30, 2009.
Over 200 Chinese villagers in Sichuan province have signed a petition to banish a HIV-positive eight-year-old boy, state media reported.
updated 6:44 AM EST, Mon December 15, 2014
A Chinese couple allegedly threw hot water on a flight attendant and threatened to blow up the plane, forcing the Nanjing-bound plane to turn back to Bangkok.
updated 12:03 AM EST, Mon December 15, 2014
China's 1.3 billion citizens may soon find it much harder to belt out their national anthem at will.
updated 7:21 PM EST, Tue December 9, 2014
Like Beijing today, Los Angeles in the last century went through its own smog crisis. The city's mayor says LA's experience delivers valuable lessons.
updated 12:42 AM EST, Sat December 6, 2014
At the height of his power, Zhou Yongkang controlled China's police, spy agencies and courts. Now, he's under arrest.
updated 3:26 AM EST, Fri December 5, 2014
China says it will end organ transplants from executed prisoners but tradition means that donors are unlikely to make up the shortfall.
updated 1:48 AM EST, Fri December 5, 2014
China's skylines could look a lot more uniform in the years to come, if a statement by a top Beijing official is to believed.
updated 3:55 AM EST, Wed December 3, 2014
Despite an anti-corruption drive, China's position on an international corruption index has deteriorated in the past 12 months.
updated 7:01 AM EST, Wed November 26, 2014
A daring cross-border raid by one of Russian President Vladimir Putin's associates has -- so far -- yet to sour Sino-Russian relations.
updated 7:51 PM EST, Sun November 23, 2014
A 24-hour Taipei bookstore is a hangout for hipsters as well as bookworms.
updated 8:53 PM EST, Mon November 24, 2014
China is building an island in the South China Sea that could accommodate an airstrip, according to IHS Jane's Defence Weekly.
updated 5:57 AM EST, Wed November 19, 2014
North Korean refugees face a daunting journey to reach asylum in South Korea, with gangs of smugglers the only option.
updated 6:19 PM EST, Fri November 21, 2014
China and "probably one or two other" countries have the capacity to shut down the nation's power grid and other critical infrastructure.
ADVERTISEMENT