Mice allowed to run in a revolving-drum activity cage are sensitive indicators of air pollution. They respond to the presence of synthetic smog by diminishing their 24-hour activity in the revolving wheels. The redLIction in wheel activity is comparatively greater for larger amounts of smog.
Une enquête épidémiologique est effectuée sur le portage chronique de Salmonella chez une tortue africaine Testudo sulcata. 30 prélèvements d'excréments ont permis de mettre en évidence 6 sérotypes: S. oranienburg, S. corvallis, S. durban, S. ilandoff, S. bahrenfeld, S. adelaïde. S. bahrenfeld est isolé pour la première fois au Sénégal. Les possibilités de contamination de l'homme et d'espèces animales domestiques sont envisagées
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