Cameroon [interview]: 'Bird Flu is Deadly, Contagious And Virulent'
http://allafrica.com/stories/200603200815.html
The Post (Buea)
INTERVIEW
March 20, 2006
Posted to the web March 20, 2006
Modeste Mba Talla
Okwen Tenjoh-Okwen studied forestry at the University of Dschang, Cameroon, before moving over to Germany where he obtained his MSc. Since 2003, he has been working as an independent consultant for the Food and Agricultural Organisation of the United Nations, FAO.
Okwen explains what the bird flu is and expresses fears of the devastating effects of the bird flu should it settle and spread in Cameroon. Yet, he hopes that with proper and effective sensitisation and preparedness, the bird flu could be checked and diverted. Information contained in this interview represents the views of the author only and do not necessarily imply the official position of FAO or any other organisation cited.
What is bird flu?
Bird flu - known technically as avian influenza - is a highly contagious viral disease, which occurs naturally in birds. It was first discovered in Italy more than 100 years ago. It can be caused by any one of about 20 different strains of the influenza virus. Many wild birds are thought to be natural hosts of avian influenza viruses (AIV) without necessarily becoming ill.
This disease, however, can kill domestic birds, mostly chickens, ducks as well as turkeys. Several of these strains are known to be capable of infecting humans, with some of them responsible for the flu pandemics recorded in the past century. The world's attention is currently focused on a highly contagious and virulent strain known as H5N1. It refers to the specific nature of two proteins, haemagglutinin and neuraminidase, found on the surface of the virus.
What is the difference between avian flu and bird flu? Or are they the same?
Yes, they are the same. Avian is another word for bird. There are several names commonly used as synonyms for bird flu. Some of them include: avian flu, influenza virus A flu, type A flu, avian influenza virus flu or genus A flu.
Why would the bird flu be devastating for Africa?
The H5N1 virus has a high ability to cause disease in birds that is capable of interfering with the proper functioning of multiple internal organs. This can result in a mortality rate of up to 100 percent in less than a week for poultry farmers. We equally have inadequate crisis management mechanisms: limited resources, difficulty in tracing infected animals to the farm owner, limited number of trained staff for monitoring and sensitisation, poor transport networks, etc.
Is there a possibility of the bird flu jumping into humans?
Until now, the AIV is not adapted to human-to-human transmission. However, there are two potential routes through which this can be facilitated. According to some scientists, a pig can be the medium for mixing of genes when infected by both a human flu virus and the H5N1 virus.
This in turn creates a hybrid that is easily transmitted by man. This is particularly possible in Africa where pig-human-poultry interactions are common. Also considering the fact that the H5N1 virus could potentially cause disease in other wild animals, several animal-to-animal strains may develop.
If a primate strain of the virus, for example, becomes available in the wild, the virus would have moved a step closer to a human strain. Consumption of primate bush meat may result in our being infected with such a virus with the potential of easily mutating into a human strain.
How dangerous is bird flu?
It kills very rapidly on infection and there is no vaccine against it. Another issue is its aggravating an already fragile nutritional and economic state of affairs within many households in Africa. Poultry is probably the best managed investment by the rural poor in Africa. As food or a source of income, H5N1 has the potential of disrupting this pattern.
More than 80 people have already died of bird flu infection in Asia. Do Africans have any chance of escaping with their lives?
Africa is fortunate that a lot is already known about the disease from its outbreak in Asia. With appropriate planning, technical and financial assistance, the situation could be far less severe. The key to Africa's escape, nonetheless, lies in massive sensitisation and awareness-raising campaigns combined with efficient monitoring of crisis management mechanisms.
Extensive use should be made of schools, churches, mosques, the radio, and television...well before the disease affects a given country.
What could FAO have done do to prevent the bird flu from leaving Nigeria?
FAO just urged neighbouring countries to tighten border inspections. They are currently giving Nigeria technical assistance in applying standard procedures recommended by FAO and the OIE international guidelines.
One major problem is that it is not clear if infection is a result of imported chicken or migratory birds. The Nigerian authorities are known to have banned the import of poultry as far back as early 2004. This, in theory, should mean migratory birds introduced the virus.
What measures should Cameroon take now?
A few months ago, it was announced that the Cameroonian government had established a bird flu crisis management plan. I am not aware of the details of the plan but I might as well say that most of what is valid for Nigeria is equally valid for Cameroon and may already have been included in this plan.
However, closing the border to poultry and bird related products from the rest of the world; this includes eggs, feather bags, pillows made of feathers, could minimise the risk of further introduction of AIV in Cameroon. Stockpiling TAMIFLU, the medication known to be most effective against the flu, against an explosion of the virus could be helpful. Educating district doctors on rapid detection mechanisms to facilitate rapid administration of the required therapy is another thing to do.
What else could be done to control the spread of the flu?
The Ministries of Public Health and Animal Husbandry, which prepared the crises management plan of Cameroon, are quite limited. Emphasis should thus be placed on the participation of the Ministries of Agriculture, Forestry and Education in monitoring and sensitising the population.
Do you think that Cameroonian authorities are ready to face bird flu?
By preparing a crisis management plan, Cameroonian authorities demonstrated their commitment to the fight against bird flu. Companies such as CDC, PMUC, Guinness Cameroon, etc, should come up with awareness raising activities and clear strategies for their staff and their families in order to reduce pressure on the government crisis management teams.
If cross-infection to humans is still relatively rare, and the experts say if the H5N1 strain mutates so it can be passed between humans, it could become a global pandemic. That is scaryâ-oe
Certainly, especially when one considers the fact that improved transportation facilities have not only shortened travel time around the world, but have equally increased travel frequency. Yet, never before have awareness and preparation for a flu pandemic been so intense.
Besides, recent advancements in technology imply we are clearly smarter than during the previous flu pandemics. These two factors have enhanced the ability of international community to control a flu pandemic at an early stage, should we get there.
One last wordâ-oe?
Bird flu is no laughing matter. Beside the potential impact of the disease on humans, its effect on livelihoods is clearly devastating. In Asia, nutritional patterns, income generating activities and even socio-cultural patterns have been adversely affected. Animal breeding has become an issue for the privileged and as a result, the poor, with limited options, become even poorer.
Equally important are the economic losses caused by fear of the disease; tourism, international trade options and business travels are at a minimum. This could happen in much of Africa, including Cameroon.
As a forestry expert, I am very much aware of what the potential transmission of the AIV virus through migratory birds implies: it is our responsibility to be at the battlefront, identifying infected birds and animals well in advance, and preventing them from contaminating domestic animals and humans.
Relevant Links
Central Africa
Cameroon
Health and Medicine
Food, Agriculture and Rural Issues
Given the huge amount of financial, technical and human resources needed, combined with the complexity of the threat, this is extremely difficult to achieve. But much can be achieved if we make use of conservation agencies such as Birdlike International, CBCS, WWF, WCS, etc that are actively present in different parts of the country. My fear is that the battlefront may move to the next stage (domestic animals and humans), overburdening animal husbandry and medical experts.
There is equally a group of professionals that can clearly make a difference: teachers. They have an abundance of the much-needed skills for sensitisation campaigns and they are present in almost every village in the country; Cameroon needs their help.