Joint study sheds new light on the cause of pandemic influenza

With the use of sophisticated mathematical modelling techniques, a mathematician at PolyU and his co-researchers have completed a study that explains the phenomenon of multiple waves of influenza pandemic in the last century.

With the use of sophisticated mathematical modelling techniques, a mathematician at The Hong Kong Polytechnic University (PolyU) and his co-researchers have completed a study that explains the phenomenon of multiple waves of influenza pandemic in the last century.

Taking part in this advanced study is Dr Daihai He, Assistant Professor of PolyU's Department of Applied Mathematics. He has collaborated with four researchers in Canada to offer an explanation to the worst influenza pandemic in the history of mankind. The research team found that behavioural response has the largest impact among three primary factors causing the waves, thus paving the way for future enhancement on control strategies to the spread of .

The 1918 was one of the world's deadliest natural disasters, causing the death of hundred thousands of people. Influenza pandemic appears to be characterized by multiple waves of incidence in one year, but the mechanism that explains this phenomenon has so far been elusive.

In explaining the deadly pandemic, Dr Daihai He and his teammates have incorporated in their mathematical model three contributing factors for multiple waves of in England and Wales: (i) schools opening and closing, (ii) temperature changes during the outbreak, and (iii) changes in in response to the outbreak.

Dr He and the researchers further applied this model to the reported influenza mortality during the 1918 pandemic in 334 British administrative units and estimate the epidemiological parameters. They have used information criteria to evaluate how well these three factors explain the observed patterns of mortality. The results indicate that all three factors are important, but had the largest effect.

The findings have recently been published in the journal Proceedings of the Royal Society Biological Sciences (July 2013 Issue). Dr He's expertise in advanced mathematics and statistics has helped improve our understanding of the spread of influenza virus at the population level and lead to improved strategies to control and minimize the spread of virus.

add to favorites email to friend print save as pdf

Related Stories

Measuring the uncertainties of pandemic influenza

Jul 02, 2012

A major collaboration between US research centers has highlighted three factors that could ultimately determine whether an outbreak of influenza becomes a serious epidemic that threatens national health. The research suggests ...

Researchers suggest boosting body's natural flu killers

May 23, 2013

A known difficulty in fighting influenza (flu) is the ability of the flu viruses to mutate and thus evade various medications that were previously found to be effective. Researchers at the Hebrew University of Jerusalem have ...

Recommended for you

Fatigue, fear are daily lot of Ebola fighters: experts

4 hours ago

Doctors, nurses and hospital workers fighting the Ebola epidemic in west Africa are struggling with a daily burden of exhaustion, shortage of staff and fear for themselves over the deadly virus, specialists say.

Hong Kong makes Ebola 'contingency' measures

7 hours ago

Hong Kong said Wednesday it was quarantining all people from Guinea, Sierra Leone and Liberia who were showing Ebola-like symptoms on arrival in the city, as fears grow worldwide about the spread of the deadly virus.

User comments