Drains linked to lymphatic filariasis and malaria in Dar es Salaam, United Republic of Tanzania

May 25, 2010

The most common aquatic habitat in Dar es Salaam - drains - are important vectors for the development of lymphatic filariasis (LF) and malaria, according to new research. The study, published May 25 in the open-access journal PLoS Neglected Tropical Diseases, shows that more than 70% of open Anopheles and Culex larval habitats in Dar es Salaam are human-made, and may be treatable.

Dar es Salaam has an extensive drain network, mostly with inadequate water flow, making and Culex common. However, the importance of drains as larval habitats was previously unknown. The researchers analyzed detailed surveys of both mosquito habitats and drain conditions in the city; their findings suggest that simple but well-organized environmental management interventions, aimed to restore and maintain the functionality of drains, may help reduce mosquito-borne . The authors say that such an intervention will also promote an overall healthier environment, particularly for those living in slum conditions.

The intervention would also reduce costs of the ongoing Urban Malaria Control Program (UMCP), the authors find, by eliminating an average of 42% of all potential mosquito larval habitats that are currently treated with larvicides in weekly intervals. This type of vector control is critical to minimize LF transmission when mass drug administration efforts have moderate population coverage or are prematurely ceased, the authors say.

The authors conclude: "A synergy between efforts to control lymphatic filariasis and malaria, identifying common strategies, combining monitoring activities, optimizing the use of limited financial resources, and carefully evaluating the cost-effectiveness of the joint venture would not only contribute to current goals of lymphatic filariasis and elimination, but also provide important lessons for future integrated control efforts."

Explore further: Can robots help stop the Ebola outbreak?

More information: de Castro MC, Kanamori S, Kannady K, Mkude S, Killeen GF, et al. (2010) The Importance of Drains for the Larval Development of Lymphatic Filariasis and Malaria Vectors in Dar es Salaam, United Republic of Tanzania. PLoS Negl Trop Dis 4(5): e693. doi:10.1371/journal.pntd.0000693

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

Can robots help stop the Ebola outbreak?

8 hours ago

The US military has enlisted a new germ-killing weapon in the fight against Ebola—a four-wheeled robot that can disinfect a room in minutes with pulses of ultraviolet light.

New bird flu case in Germany

8 hours ago

A worrying new strain of bird flu has been observed for the first time in a wild bird in northern Germany, the agriculture ministry said Saturday.

Mali announces new Ebola case

Nov 22, 2014

Mali announced Saturday a new case of Ebola in a man who is fighting for his life in an intensive care unit in the capital Bamako.

Plague outbreak kills 40 in Madagascar: WHO

Nov 22, 2014

An outbreak of plague has killed 40 people in Madagascar, the World Health Organization said, warning that the disease could spread rapidly in the country's densely populated capital Antananarivo.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.