20 February 2007, Rome - FAO has urged Nigeria to increase
control measures on poultry farms and markets to prevent the
spread of avian influenza and reduce the risk of further human
cases.
A
statement issued after a mission to Nigeria said that the virus
is still circulating in poultry flocks in the country with
outbreaks reported in at least 10 states over the past few
months.
The virus probably spread along major trade routes within
Nigeria placing neighbouring countries at risk by birds moved
informally across borders.
Increased surveillance could ensure that countries detect an
incursion of disease without delay.
“The first confirmed case of H5N1 infection in humans in Nigeria
shows that there is a continuing danger of human exposure to the
virus from high-risk practices, such as handling sick or dead
chickens, and especially from unsafe slaughtering of poultry at
home or in markets,” said Joseph Domenech, FAO Chief Veterinary
Officer.
Cases of human infection have occurred in all countries with a
similar occurrence of the disease in poultry. “The first human
case is therefore not unexpected and should not suggest that
there is an increased risk for humans. However, it does
emphasize the need to increase control of H5N1 in poultry,”
Domenech said.
Lagos markets
Poultry are brought into Lagos markets from all over the
country, including from states that have suffered H5N1
outbreaks.
Lagos is the biggest city in Nigeria with about nine million
inhabitants.
It is therefore not surprising that people buying chickens in
markets and slaughtering them at home may be exposed to
infection. Even where poultry are slaughtered in markets,
hygiene conditions are very poor.
FAO is supporting the government to increase active disease
search to better understand the spread and incidence of the
disease to identify high-risk areas. Understanding how the virus
circulates is essential for good control plans.
FAO stressed the need to reduce the risk of infections in humans
through control measures in markets, such as veterinary
inspections, improved hygiene and the discouraging of home
slaughter. Home slaughtering is very common in Nigeria as in
many other African countries.
Consumption of poultry is safe if it does not come from outbreak
areas and is properly cooked. Slaughtering or preparation should
be undertaken with basic hygiene measures such as washing hands,
knives and surfaces.
Prevention and control
Farmers should introduce strict procedures to prevent the
disease from entering their farms including disinfection of all
materials coming onto their property. Contact between poultry
and wild birds should be prevented.
New poultry for rearing should come only from sources that are
guaranteed to be free from avian influenza.
Nigeria is encouraged to seriously consider targeted vaccination
of poultry where appropriate, using quality vaccines and
applying strict monitoring procedures.
Improved control of the disease in Nigeria requires close
cooperation between public veterinary services and private
industry.
FAO is increasing its technical support to the country in expert
advice, supplies and equipment to help bring the disease under
control, which will not be an easy task. The agency has also
launched an active disease surveillance programme funded by the
European Union.
Nigeria produced around 150 million live chickens in 2005. Sixty
percent of the chickens are kept in backyard flocks. The
commercial sector accounts for 25 percent of production and the
semi-commercial sector for 15 percent.
Approximately 300 000 poultry have died due to H5N1 and another
400 000 have been culled as part of control measures. Affected
species include chickens, ostrich, ducks, pigeons, turkeys, and
geese.