meat |
Fast
food chain Burger King has made a commitment to only serve chicken meat
from animals that haven't been fed antibiotics in the US and Canada.
But the same rules won't apply in Kenya.
Eating meat from animals that have been fed antibiotics has been attributed to a rise in resistance to the drugs that treat bacterial germs. The Conversation Africa's health and medicine editor Joy Wanja Muraya asks Sam Kariuki to explain the health risks.
The use of
antibiotics by farmers to keep their livestock healthy poses a potential
threat to people. How prevalent is this in Kenya?
Antibiotics are used in animal production to prevent disease and promote growth in those bred for sale as meat. More than 50% are used to promote growth.
A recent study
conducted in 228 countries estimates that the use of antibiotics in
animals will rise by 67% in the next 13 years. It expects use to nearly
double in Brazil, Russia, India, China, and South Africa.
The reason for the
rise in low and middle income countries is an expected spike in demand
for meat as economies of these countries improve. This in turn will
encourage rapid growth in intensive farming systems. These are often
associated with increased use of antibiotics.
In large scale
animal production such as poultry production, antibiotics are added to
drinking water to prevent common bacterial and parasitic diseases and as
growth promoters.
Antibiotic use in domestic animals in Kenya is not well documented. But reports show they are extensively used among poultry farmers, particularly by intensive smallholder and commercial farmers.
Does this pose a health risk to people? If so, what is it?
If people eat food
from animals that have been fed antibiotics normal bacteria that helps
maintain ecosystems in the gut, as well as pathogens in humans, can
develop resistance to drugs.
When people are
infected by the resistant bacteria and require treatment, commonly
available drugs may not work because resistance has set in.
Studies in Kenya show that resistance to antibiotics is a major public health concern. With antibiotics, the more you use them the faster you lose them.
There are direct
and indirect ways that the use of antibiotics in animals bred for
consumption can affect us. The direct link is associated with consuming
meat that's been treated with antibiotics which leads to bacteria
becoming resistant to the drugs. The indirect effects refer to the
spread of this resistant bacteria in either soil or water.
Drug resistance
leads to more severe infections, prolonged hospitalisation and in some
cases, more deaths if they can't be treated.
What are the
solutions? For example, some food suppliers refuse to sell meat from
animals that have been fed antibiotics. How do countries like Kenya
stack up?
One major success
has been the implementation of a national action plan which is in line
with World Health Organisation guidelines.
Kenya does have legislation in place to control the use of antibiotics in animals.
But it needs to do more to step up enforcement efforts. For example
only professionals legally entitled to administer these drugs should
handle them. And counterfeit products should be intercepted and
prosecutions should be prompt.
In addition there
should be awareness campaigns, surveillance should be strengthened and
monitoring improved. And legal frameworks, including what dosages are
acceptable, must be harmonised between counties and the national
government.
What should countries like Kenya be doing to minimise the risk?
County laboratories
in Kenya should be better equipped to monitor bacteria that have become
resistant to drugs. They often face shortages of laboratory supplies
which means they can't carry out prompt or routine surveillance.
On top of this
laboratories are poorly funded and clinicians aren't updated on trends
about drug resistance. This means that the quality of data produced is
outdated.
Collaborative
programmes should be encouraged between laboratories at research
institutions, universities and private hospitals. And the national and
county governments should be urged to contribute to capacity building.
This could include
developing education materials and programs for training farmers and
veterinarians on prudent drug use and appropriate storage.
Finally, it's
critical to learn about the factors that promote resistance as well as
the benefits and cost effectiveness of preventative measures.
Disclosure statement
Samuel Kariuki
receives funding from National Institute of Allergy and Infectious
Diseases of the NIH Centre for for Disease Dynamics, Economics and
Policy, and the Wellcome Trust for an ongoing research.
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