Skip to main content
Part of complete coverage on

China bird flu cases rise, still no evidence of human transmission

By Paul Armstrong, CNN
updated 10:16 PM EDT, Mon April 8, 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
  • Total number of infections has risen to 21, Xinhua reports
  • Six people have died so far, though virus yet to pass between humans
  • WHO: Source of the current outbreak remains unknown
  • China working on vaccine for H7N9 virus, health officials say

Hong Kong (CNN) -- China announced another case of a rare strain of bird flu Monday, taking the total number of H7N9 infections to 21, the state-run Xinhua news agency said.

The new case was confirmed in the country's eastern Anhui province, Xinhua said.

Six people have died so far, four in Shanghai and two in Zhejiang, in eastern China, Xinhua said.

Chinese authorities have killed more than 20,000 birds from a live-poultry trading zone in Shanghai in an effort to deal with the issue, while a number of other cities across the country have also announced trading suspensions.

READ: China closes poultry sale in third city

Poultry markets closed over bird flu
China on high alert over bird flu

In a joint press conference with China's health ministry in Beijing early Monday, the WHO reiterated that the source of the current outbreak has yet to be pinpointed but that they have not seen any cases of the virus passing between humans.

"The recent reports from China are the first cases of human infection with H7N9 viruses. Although we do not yet know the source of infection, at this time there is no evidence of sustained human-to-human transmission," said the WHO's Michael O'Leary.

"We know at this point that, in the human cases we know, the disease is very serious and a large percentage of cases have died -- or a substantial percentage have died and others are critically ill.

"Some of the confirmed cases had contact with animals or with environments in which animals were located. The virus has been found in a pigeon in a market in Shanghai. These events gave possibility of animal-to-human transmission, for which investigations continue."

Authorities kill 20,000 birds as toll rises

Meanwhile, Chinese officials say they have started work on a vaccine for the H7N9 virus.

However, it may take up to eight months before the vaccine can be brought to market due to complications in the development and manufacturing process, said Liang Wannian, director of the H7N9 influenza prevention and control office under the National Health and Family Planning Commission (NHFPC), according to Xinhua.

Liang said the decision to put the vaccine into production will depend on whether the virus can mutate to become human-to-human transmissible.

"We are taking a series of measures to prevent and control infections. Infection monitoring efforts are under way in over 500 hospitals and 400 labs nationwide. We have confidence in keeping the disease under control," he said.

Ke Feng in Beijing contributed to this report.

ADVERTISEMENT
Part of complete coverage on
updated 8:37 AM EDT, Wed April 16, 2014
Mentions of the 1989 Tiananmen Square student protests or political reform are still censored in China.
updated 2:01 PM EDT, Sun April 13, 2014
CNN's Brian Stelter talks with CCTV correspondent Jim Spellman on how the Chinese media has covered MH370's mystery.
China's economy has bested many others in just the past 10 years.
updated 2:02 AM EDT, Fri April 11, 2014
In China, users of the "Life Black Box" website can set up final farewells to their friends in case they suddenly die.
updated 1:32 AM EDT, Fri April 11, 2014
A recent university study claims Chinese micro-blogging activity might not be as vibrant as expected.
updated 6:14 AM EDT, Thu April 10, 2014
Chinese art has been fetching some serious cash -- here's how we can elbow into the market
updated 10:51 PM EDT, Wed April 9, 2014
A Shanghainese collector paid $36 million for this tiny cup decorated with chickens.
updated 2:57 AM EDT, Tue April 8, 2014
Ben Richardson on corruption in China: a veil of secrecy shrouds the links between power and wealth.
China's economy is slowing and growth in 2014 could fall short of the government's official target, according to a CNNMoney survey of economists.
updated 8:38 AM EDT, Tue April 8, 2014
U.S. Defense Secretary Chuck Hagel is the first foreigner to visit the Chinese aircraft carrier Liaoning.
updated 9:26 PM EDT, Sun April 6, 2014
If the disappearance of Malaysia Airlines Flight MH370 caused a rift in China-Malaysia relations, the two countries appear to have put it behind them.
updated 1:17 AM EDT, Fri April 4, 2014
Martin Jacques argues that in the twenty-first century, China will challenge our perception of what it is to be modern.
A new survey of university students in China shows where they most want to work. What are the dream employers for Chinese students?
updated 9:24 AM EDT, Wed April 2, 2014
What are President Xi Jinping's greatest goals as he visits the EU headquarters in Brussels?
Last year, thousands of Chinese tourists flocked to Yellowstone National Park to view the mountains, the buffalo and Old Faithful.
updated 8:38 AM EDT, Mon March 31, 2014
A senior Bloomberg News journalist quit his role earlier this month, saying the "mishandling" by his bosses of a story critical of China was behind his departure.
updated 7:55 AM EDT, Thu March 27, 2014
"The aim is to let [families of MH370 passengers] express anger while keeping them restrained," says a Chinese official.
updated 9:58 AM EDT, Thu March 27, 2014
U.S. President Barack Obama's secret weapon in China? Michelle.
updated 10:53 PM EDT, Wed March 26, 2014
Private schools that employ humanistic pedagogy for young children are becoming popular in China. A look at the factors behind the boom and potential pitfalls.
ADVERTISEMENT