Wednesday, September 24, 2014

Possibility of Airborne Ebola

Econometrics expert Francis Smart has predicted that if the Ebola virus does mutate into an airborne form, 1.2 million people will die from the disease.
Smart, from the Michigan State University, published an article in Econometrics by Stimulation in which he outlined the mechanics of his prediction based on the research done by others. Currently the World Health Organization (WHO) has predicted that Ebola will kill 20,000 people within the next six months. Smart argues that this number is based on the assumption that the virus will not mutate into a version of itself which travels though air.
Smart used an econometric stimulation model and based his calculations on the prediction of 20,000 infections in six months that the WHO had previously issued. He also looked at the struggles facing the countries that are currently fighting the Ebola virus. Liberia in particular is facing huge issues as far as controlling the spread of disease is concerned. Medical supplies are desperately low, health workers and doctors are contracting the disease themselves, and there is a degree of civil unrest as panic sets in.
The WHO has predicted that six months is optimistic. This is the minimum amount of time that they think is needed in order to stop the disease from spreading. The statement in which they offered the prediction of 20,000 infections was published on Aug. 28, almost three weeks ago. The estimate was made in the assumption that the Ebola outbreak control effort would receive compete international back up and that every step in the plan that the WHO had drawn up to tackle the disease spread would be followed. Should international aid not be sufficient, or the plan not be executed sufficiently, the prediction was that the number of people infected with the virus would be far greater.
The prediction was also made under the assumption that the virus would not mutate into an airborne form. This, according to experts such as Michael Osterholm, is a big assumption. Osterholm, Director at Minnesota University’s Center for Infectious Disease research and Policy, explains that viruses do mutate, and to assume that this one will not could be a mistake. Other strains of the Ebola virus, such as Ebola Reston, have previously demonstrated the ability to mutate into airborne versions of themselves. Osterholm says that due to the density of the spread in the most recent outbreak in West Africa, there is the chance that the virus could change itself each time it replicates.
Smart says that death toll numbers based on the more pessimistic opinion that the Ebola virus could mutate and go airborne are much greater. He believes that 20,000 is “vastly too small” and the prediction is “entirely based on effective and well-funded international relief mission..”He went on to predict that by Oct. 24 there will already be over 20,000 cases of the disease, a far shorter time period that the six months that the WHO predicted. Smart continues his analysis to conclude that as many as 4.7 million people will become infected and 1.2 million will die.
The populations of Liberia, Guinea and Sierra Leone are approximately 4 million, 10 million and 6 million respectively. Smart asks if Liberia and the other heavily effected nations will continue to have the resources to control the disease spread even to the extent that they are doing now. He thinks not.
According to the director of the WHO, Margaret Chan, there is not a single hospital bed available in Liberia for any newly infected individuals. Facilities are at full capacity, and resources are exhausted.
Peter Poit, co-discoverer of the Ebola virus has described this most recent outbreak as “a perfect storm.”Dysfunctional healthcare systems, lack of trust in the government and denial are all some of the factors that have contributed to the spread of this infectious and deadly disease.
The calculations of Smart, an expert in econometrics, led him to urge that the global effort to fight the disease in West Africa increase resources and prioritize reducing the spread of the virus. Smart wrote that it is “extremely foolish” of any nation to think that they are immune to the Ebola virus. He said that the possibility for the disease to become airborne would lead to a global spread, an “unprecedented number of deaths,” and that as many as 1.2 million people could die from the disease.
By Tabitha Farrar

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