Posts Tagged ‘onchocerciasis’

UK NGO sets their sights on river blindness

November 23rd, 2011

Sightsavers, a UK-based NGO that addresses preventable blindness in the developing world and contributors to End the Neglect, is this year’s Financial Times (FT) seasonal appeal recipient. Sgithsavers will receive donations from British readers who contribute to the FT appeal, which will run from November 21 – mid-January. The UK government has also agreed to match individual donations made to the appeal. Click here for more information on the appeal. Below an excerpt on the current state of river blindness published in FT:

“The river in Nigeria’s poor, remote northern state of Zamfara has always played a central part in the 70-year-old’s life. He and his friends swam in it as boys “until our eyes were red”. It is a vital source of water for homes, livestock and crops in Mr Adamu’s village of Birninwaje, a fishing and farming community of 3,000 people, where he was for many years the traditional leader. It is also the source of his blindness. River blindness is endemic in these parts. The parasitical disease is named after the black flies that live near flowing waterways such as the Zamfara – and across sub-Saharan Africa, Latin America and parts of the Arabian peninsula – and transmit one of the world’s leading causes of blindness.” Click here to read the full article. Also, check Jeremiah Norris’ (Director, Center for Science in Public Policy, Hudson Institute) Letter to the Editor in response to this piece.

 

Good News on River Blindness

November 23rd, 2011

By: Alanna Shaikh

Mexico, Colombia, and Guatemala are making huge progress against river blindness, aka onchocerciasis. Colombia has eliminated river blindness from within its borders, the first country in Latin America to do so. Mexico and Guatemala have broken the cycle of transmission, and they’re ready to stop mass drug administration next year.

Elimination is a pretty clear term. It means that the disease, while still present on our planet, is down to zero in one particular region; in this case, Colombia. But what does it mean to break the cycle of transmission? Well, onchocerciasis is a tiny parasitic worm[1] that has a pretty complicated life cycle, and one particular kind of fly is essential to the survival of the disease. Without those flies, the disease is not transmitted and dies out.

Photo Credit: The Carter Center

To break the cycle of transmission, you spray insecticide in the areas of fast moving rivers where the flies breed. No more flies, no more onchocerciasis. According to the World Health Organization (WHO), it takes fourteen years of spraying to totally eliminate the reservoir of adult onchocerciasis worms and therefore make sure that the disease is gone. Once you’ve reached that point, it takes three more years of close monitoring to ensure that the disease really is gone. If there really are no cases in those three years, then, like Colombia, your country can be certified as having eliminated the disease. » Read more: Good News on River Blindness

Bite of the black fly – River Blindness

September 21st, 2011

Reposted with permission from Global Health Frontline News (GHFN):

In poor, remote communities in the tropics, river blindness (onchocerciasis) infects nearly 18 million people – 99 percent of them in Africa.

Victims are infected by tiny parasitic worms that are transmitted by the bite of a small black fly that breeds in fast-flowing rivers.

Standing on the bank of the Kitomi River in western Uganda, Dr. Frank Richards, Jr., the Director of the River Blindness Program at the Atlanta-based Carter Center, says, “I wouldn’t be surprised if you got 20 to 25 bites an hour at certain times of the day here. That’s the kind of biting rate that will easily sustain river blindness.” The video below tells the rest of the story:

Reinventing the Toilet

July 21st, 2011

New innovations in water sanitation and waste management can make great strides in NTD prevention, especially in diseases such as trachoma, schistosomiasis, and onchocerciasis which can be caused by contaminated water. Check out this video released by the Bill and Melinda Gates Foundation about new innovations in water and waste infrastructure.