Vector borne and zoonotic diseases (Larchmont, N.Y.), Jan 18, 2015
We mapped current and future temperature suitability for malaria transmission in Africa using a p... more We mapped current and future temperature suitability for malaria transmission in Africa using a published model that incorporates nonlinear physiological responses to temperature of the mosquito vector Anopheles gambiae and the malaria parasite Plasmodium falciparum. We found that a larger area of Africa currently experiences the ideal temperature for transmission than previously supposed. Under future climate projections, we predicted a modest increase in the overall area suitable for malaria transmission, but a net decrease in the most suitable area. Combined with human population density projections, our maps suggest that areas with temperatures suitable for year-round, highest-risk transmission will shift from coastal West Africa to the Albertine Rift between the Democratic Republic of Congo and Uganda, whereas areas with seasonal transmission suitability will shift toward sub-Saharan coastal areas. Mapping temperature suitability places important bounds on malaria transmissibil...
Proceedings of the National Academy of Sciences of the United States of America, Jan 4, 2015
Eliminating human parasitic disease often requires interrupting complex transmission pathways. Ev... more Eliminating human parasitic disease often requires interrupting complex transmission pathways. Even when drugs to treat people are available, disease control can be difficult if the parasite can persist in nonhuman hosts. Here, we show that restoration of a natural predator of a parasite's intermediate hosts may enhance drug-based schistosomiasis control. Our study site was the Senegal River Basin, where villagers suffered a massive outbreak and persistent epidemic after the 1986 completion of the Diama Dam. The dam blocked the annual migration of native river prawns (Macrobrachium vollenhoveni) that are voracious predators of the snail intermediate hosts for schistosomiasis. We tested schistosomiasis control by reintroduced river prawns in a before-after-control-impact field experiment that tracked parasitism in snails and people at two matched villages after prawns were stocked at one village's river access point. The abundance of infected snails was 80% lower at that vill...
... If the trematode egg is fortunate, it ends up in an aquatic environment with ... de Jong-Brin... more ... If the trematode egg is fortunate, it ends up in an aquatic environment with ... de Jong-Brink, M.(1980) How trematode parasites interfere with reproduction of their intermediate hosts, freshwater snails. ... geography, and recruitment dynamics of a larval trematode in a salt marsh snail. ...
OIKOS 68: 3-11. Copenhagen 1993 The marine snail, Cerithidea californica, matures at smaller size... more OIKOS 68: 3-11. Copenhagen 1993 The marine snail, Cerithidea californica, matures at smaller sizes where parasitism is high Kevin D. Lafferty Lafferty, KD 1993. The marine snail, Cerithidea californica, matures at smaller sizes where parasitism is high. - Oikos 68: 3-11. ...
Vector borne and zoonotic diseases (Larchmont, N.Y.), Jan 18, 2015
We mapped current and future temperature suitability for malaria transmission in Africa using a p... more We mapped current and future temperature suitability for malaria transmission in Africa using a published model that incorporates nonlinear physiological responses to temperature of the mosquito vector Anopheles gambiae and the malaria parasite Plasmodium falciparum. We found that a larger area of Africa currently experiences the ideal temperature for transmission than previously supposed. Under future climate projections, we predicted a modest increase in the overall area suitable for malaria transmission, but a net decrease in the most suitable area. Combined with human population density projections, our maps suggest that areas with temperatures suitable for year-round, highest-risk transmission will shift from coastal West Africa to the Albertine Rift between the Democratic Republic of Congo and Uganda, whereas areas with seasonal transmission suitability will shift toward sub-Saharan coastal areas. Mapping temperature suitability places important bounds on malaria transmissibil...
Proceedings of the National Academy of Sciences of the United States of America, Jan 4, 2015
Eliminating human parasitic disease often requires interrupting complex transmission pathways. Ev... more Eliminating human parasitic disease often requires interrupting complex transmission pathways. Even when drugs to treat people are available, disease control can be difficult if the parasite can persist in nonhuman hosts. Here, we show that restoration of a natural predator of a parasite's intermediate hosts may enhance drug-based schistosomiasis control. Our study site was the Senegal River Basin, where villagers suffered a massive outbreak and persistent epidemic after the 1986 completion of the Diama Dam. The dam blocked the annual migration of native river prawns (Macrobrachium vollenhoveni) that are voracious predators of the snail intermediate hosts for schistosomiasis. We tested schistosomiasis control by reintroduced river prawns in a before-after-control-impact field experiment that tracked parasitism in snails and people at two matched villages after prawns were stocked at one village's river access point. The abundance of infected snails was 80% lower at that vill...
... If the trematode egg is fortunate, it ends up in an aquatic environment with ... de Jong-Brin... more ... If the trematode egg is fortunate, it ends up in an aquatic environment with ... de Jong-Brink, M.(1980) How trematode parasites interfere with reproduction of their intermediate hosts, freshwater snails. ... geography, and recruitment dynamics of a larval trematode in a salt marsh snail. ...
OIKOS 68: 3-11. Copenhagen 1993 The marine snail, Cerithidea californica, matures at smaller size... more OIKOS 68: 3-11. Copenhagen 1993 The marine snail, Cerithidea californica, matures at smaller sizes where parasitism is high Kevin D. Lafferty Lafferty, KD 1993. The marine snail, Cerithidea californica, matures at smaller sizes where parasitism is high. - Oikos 68: 3-11. ...
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