QUIZ 1. How many enterotoxins have been found in Staphylococcus aureus up to now? 2. Clostridium botulinum can produce a kind of highly fatal toxin, it is an enterotoxin or neurotoxin?What is the lethal dose of this toxin? 3. Where can we usually isolate Campylobacter?Why? 4. What is the basis of the classification of Salmonella spp.?And what is this basis determined by? 5. What makes Listeria monocytogenes highly hazardous to ready-to-eat foods?1. How many enterotoxins have been found in Staphylococcus aureus up to now? 2. Clostridium botulinum can produce a kind of highly fatal toxin, it is an enterotoxin or neurotoxin? What is the lethal dose of this toxin? 3. Where can we usually isolate Campylobacter? Why? 4. What is the basis of the classification of Salmonella spp.? And what is this basis determined by? 5. What makes Listeria monocytogenes highly hazardous to ready-to-eat foods?