Microbiology
Which of the following media is selective for Salmonella?

All of these
Wilson and Blair's brilliant-green bismuth sulphite agar medium
Bile salt agar
Thiosulphate citrate bile salt agar

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Microbiology
Which of the following is true to prevent botulism from smoked fish?

Fish should be immediately frozen after packaging and kept frozen
All of these
The fish should be heated at its coolest part to at least 82°C for 30 min during or after smoking
Good sanitation should be maintained throughout production and handling

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