Thursday, 12 August 2010

Aflatoxins claim victims in Africa

Recent reports from Africa tell of a major outbreak of aflatoxin poisoning in Kenya which has already resulted in one death, a small child.
Aflatoxin is produced by a wide variety of Aspergillus species and is highly toxic to people & animals when eaten in contaminated food.

In this case the contaminated food is known to be maize that is grown and then stored without sufficient drying or is stored in damp conditions. Maize is the main staple food in many parts of Africa and is grown for food and for profit. It is interesting to note that this has happened in this case at the end of a period of drought and famine as  we  know that Aspergillus is good at infecting a crop that is stressed by damage or water shortage so perhaps that is a factor in this outbreak?

This is the latest in a series of outbreaks of aflatoxin contamination. The largest recorded recent outbreak was in 2004 which led to 317 cases of aflatoxicosis and 125 deaths. Apart from the cost in human lives there is a huge cost to the livelihood of many farmers across a large area - the report mentions 29 districts affected. Contaminated grain cannot be sold for a good price or cannot be sold at all (depending on the level of contamination) and millions of bags of grain have been affected.

We have written several times of the methods being developed to limit aflatoxin contamination of crops:

New biopesticide Aflasafe™ may solve Kenya's ongoing maize contamination problem.

New biocontrol agent for Aspergillus contamination of peanuts

but clearly there are some more immediate basic solutions that can be tried first. Education of farmers about how to avoid creating conditions condusive to mycotoxin production is one mentioned in the report, and the Kenyan government is looking at providing drying machines to dry grain properly in the area affected to try to avoid future problems.

For the maximum allowable limits of mycotoxins in Africa: see
For a lot more information on worldwide mycotoxin foodstuff regulations see

No comments:

Contact us at