Un vaccino contro la salmonellosi: è un progetto a cui sta lavorando il Politecnico di Zurigo (ETH). Dopo sei anni i ricercatori hanno scoperto che alcuni anticorpi proteggono dalle infezioni. Lo studio è stato pubblicato sulla rivista Nature.
Concretamente, gli anticorpi IgA (immunoglobuline A) riescono a isolare i batteri. Quest'ultimi possono moltiplicarsi, ma rimangono prigionieri. Ciò evita una contaminazione dei tessuti intestinali - e dunque delle infiammazioni - e accelera la loro evacuazione per via naturale. L’istituto di microbiologia dell'ETH ha lavorato con partner ticinesi, francesi, italiani, svedesi e australiani.
Il principale campo d'applicazione del futuro vaccino è l'allevamento di animali da reddito. Un vaccino per l'uomo sarebbe immaginabile, per esempio per le persone che lavorano in zone sinistrate o che viaggiano spesso in luoghi dove questo tipo di infezione è frequente.
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