Clip description
In 1997 Avian flu erupted in Hong Kong. The government destroyed all chickens and the outbreak was contained. Virologists Robert Webster and Albert Osterhaus talk about the potential for human transmission.
This clip chosen to be PG
In 1997 Avian flu erupted in Hong Kong. The government destroyed all chickens and the outbreak was contained. Virologists Robert Webster and Albert Osterhaus talk about the potential for human transmission.
This clip shows how it was established that an outbreak of avian (bird) influenza in Hong Kong in 1997 crossed over into the human population and resulted in the death of, among others, the 3-year-old boy depicted here. It includes a representation of the hospitalisation of the boy and footage of dead and dying poultry. About 1.5 million chickens were killed in an effort by authorities in Hong Kong to contain the outbreak. Virologist Albert Osterhaus describes how, with the help of fellow virologist Robert Webster, he identified that the boy was infected with the H5N1 strain of avian influenza, the first time this strain was seen to jump directly to humans.
Large numbers of dead and dying poultry are shown.
Narrator But while the poultry epidemic raged out of control, the rest of the world was not taking much notice. It was just a disease killing birds in a faraway place.
Reconstructed footage depicts a boy in a hospital bed, attended to by a doctor.
Narrator Then something happened that would set off alarm bells among then world’s leading virologists. In May a 3-year-old boy in Hong Kong was admitted to the hospital with what appeared to be influenza. Tests were performed for all the recent strains of human flu but all came up negative. Then, before doctors could identify the disease, the boy died. They had a disturbing mystery on their hands and they needed answers – fast.
Sped-up scenes in a laboratory show scientists working on identifying the virus.
Narrator They rushed virus samples from the boy to some of the world’s premier viriology laboratories that track the spread of influenza. Among them was the lab of Albert Osterhaus in Rotterdam.
Albert Osterhaus is interviewed.
Albert Osterhaus, virologist A boy has died – influenza virus that cannot be typed. That’s a scary message.
As the narration continues Albert Osterhaus is shown working in his lab.
Narrator Osterhaus needed more information. Since scientists know that some human influenza viruses are also found in birds, the next logical step was to test for avian flu. Still, it was a long shot. Scientists had never seen a bird flu virus jump directly to humans.
Albert Osterhaus is interviewed.
Albert All the textbooks will tell you that avian influenza viruses do not transmit to humans.
Robert Webster works in his lab.
Narrator Osterhaus knew who could help. In Memphis, Tennessee fellow virologist Robert Webster had been collecting samples of bird flu viruses for decades.
Robert Webster is interviewed.
Robert Webster, virologist Alb Osterhaus called me up on the telephone and said, ‘We’ve got this very strange virus that we can’t identify. It behaves like an influenza virus but we don’t have all of the reference serum we need.
Narrator Webster sent Osterhaus the reference serum that contained antibodies to the 15 known strains of avian flu. Osterhaus tested the boy’s virus against each of the antibodies. It was positive for the avian virus H5N1.
Robert Webster ...indicating for us at that moment that we were dealing with an avian virus – the H5 influenza virus which had not been seen in humans before.
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