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… metres at low tide, as well as human-made wetlands such as waste-water treatment ponds and reservoirs. About this series … virus can survive in water and spread through wetlands. Waste from poultry facilities should not be allowed to enter … poultry), their food and water sources, and their waste where this is feasible; ii) improve biosecurity …

… some effects, such as those from chemical pollutants, waste or excess nutrients, are more insidious, and their … cholera or leptospirosis; storms can increase transport of waste water diseases to groundwater. • Variations in … local population of gulls (Larus spp.); and � presence of waste meat from the processing plant, and potential access to …