Europe South Asia Asia Pacific Americas Middle East Africa BBC Homepage World Service Education



Front Page

World

UK

UK Politics

Business

Sci/Tech

Health

Education

Sport

Entertainment

Talking Point

In Depth

On Air

Archive
Feedback
Low Graphics
Help

Friday, October 29, 1999 Published at 12:23 GMT 13:23 UK


Health

Pig flu sparks epidemic fears

A new virus strain is causing concern

An exotic flu strain identified in Hong Kong appears to have crossed from pigs to humans, triggering memories of a global flu pandemic which killed 20 million people in 1918.

Although health officials in the former colony are anxious not to cause panic, they are monitoring the new strain closely.

The infection, reported in New Scientist magazine, was identified in a 10-month-old girl admitted to Hong Kong's Tuen Mun hospital in late September.


[ image: A chicken flu strain caused panic]
A chicken flu strain caused panic
Although she was successfully treated, the virus bears all the molecular hallmarks of a porcine, or pig, strain.

This is a source of concern because research published in 1997 suggested that a virus which jumped from pigs to people was the source of the Spanish flu pandemic in 1918.

Alan Hay, director of the World Health Organisation influenza collaborating centre at the National Institute for Medical Research in London, said: "We're monitoring the case very carefully for that reason. We don't know the ins and outs of this yet."

New strains every year

New strains of flu emerge every year, which is why the standard influenza vaccination only remains effective for a short time.

Most are no more virulent than standard flu, but every few decades, a radically different virus emerges which can trigger pandemic infections killing millions across the globe - the last two were in 1957 and 1968.

Previous small outbreaks of swine influenza proved false alarms. In 1986, a Dutch man suffered severe pneumonia after contracting a virus, and in 1977 a similar virus turned up in a handful of people in Fort Dix, New Jersey.

Alan Kendal, who headed the Centre for Disease Control's influenza programme in the 1980s, said: "The question is: how do you not cry wolf while avoiding closing the door after the horse has bolted?"

Hong Kong is sensitive to the prospect of virulent flu strains crossing from the animal population.

Two years ago, a strain from chickens led to the deaths of six people, a third of those infected, and sparked a mass cull of chickens in a successful attempt to contain it.

Predictions from the CDC suggest that 200,000 in the US could die if a particularly virulent strain of flu struck the country.



Advanced options | Search tips




Back to top | BBC News Home | BBC Homepage | ©


Health Contents

Background Briefings
Medical notes

Relevant Stories

08 Oct 99 | Health
Dobson tells doctors to shun flu drug

14 Jan 99 | Health
Flu kills thousands

06 Jan 99 | Health
When flu hits danger levels





Internet Links


New Scientist

Public Health Laboratory Service

World Health Association


The BBC is not responsible for the content of external internet sites.




In this section

Disability in depth

Spotlight: Bristol inquiry

Antibiotics: A fading wonder

Mental health: An overview

Alternative medicine: A growth industry

The meningitis files

Long-term care: A special report

Aids up close

From cradle to grave

NHS reforms: A guide

NHS Performance 1999

From Special Report
NHS in crisis: Special report

British Medical Association conference '99

Royal College of Nursing conference '99