#11 Claro, porque el problema es cómo se estropean una vez que las bolsas se abren. No que haya salmonella en el producto envasado per se. Mira justo lo que dice antes:
"This strongly emphasises the need for salad leaf growers to maintain high food safety standards as even a few Salmonella cells in a salad bag at the time of purchase could be become many thousands by the time a bag of salad leaves reaches its use by date, even if kept refrigerated. Even small traces of juices released from damaged leaves can make the pathogen grow better and become more able to cause disease. It also serves as a reminder to consume a bagged salad as soon as possible after it is opened. We found that once opened, the bacteria naturally present on the leaves also grew much faster even when kept cold in the fridge."
Y justo después:
"Despite a number of published reports on improving the microbiological safety of salad leaf production, very few studies have investigated the behaviour of Salmonella once the leaves have been bagged."
#1 Hola, no era el genoma completo, en este caso han utilizado técnicas de secuenciación masiva y han comparado su ADN con otras especies para comprobar la "erosión" de su genoma. Un cordial saludo