Guess Who’s Coming to Dinner? Emerging Foodborne Zoonoses

Toxoplasma: Guess Who's Coming to Dinner

In this issue of Cell, Coppens and coworkers (Coppens et al., 2006) describe how Toxoplasma gondii, an obligate intracellular parasite, feeds on the host. Coppens et al. provide evidence that the parasite takes host cell endosomes and lysosomes hostage by sequestering them where the parasite resides, within invaginations of the parasitophorous vacuole.

Guess Who's Been Coming to Dinner? Trends in Interracial Marriage over the 20th Century

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emerging and re-emerging zoonoses

Emerging zoonoses.

In the past few years, emergent disease episodes have increased; nearly all have involved zoonotic or species-jumping infectious agents. Because there is no way to predict when or where the next important new zoonotic pathogen will emerge or what its ultimate importance might be, investigation at the first sign of emergence of a new zoonotic disease is particularly important. Such investigation...

Emerging zoonoses.

Zoonotic pathogens cause infections in animals and are also transmissible to humans; knowledge of the extrahuman reservoirs of these pathogens is thus essential for understanding the epidemiology and potential control of human disease. Zoonotic diseases are typically endemic and occur in natural foci. However, ecologic change and meteorologic or climatic events can promote epidemic expansion of...