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Negli ultimi anni le punture di zecca in Svizzera sono aumentate notevolmente. Ora alcuni ricercatori romandi hanno scoperto una spiegazione: l'ambiente è sempre più ospitale per questi piccoli aracnidi, si legge in un comunicato odierno della Suva. Gli animaletti, potenzialmente pericolosi, si trovano nel sottobosco e sulle piante ai margini di boschi e sentieri fino a 1,5 metri di altezza, in attesa del passaggio di persone o animali.
"Tra il 2009 e il 2018 l'habitat adatto alle zecche si è esteso di oltre due terzi", spiega Felix Ineichen, esperto del tema della Suva. Uno dei motivi è da ricercare nelle mutate condizioni climatiche, soprattutto ad altitudini fra i 500 e i 1'000 metri di quota.
Il pericolo zecche
Il Quotidiano 28.06.2021, 21:30
Il proliferale degli aracnidi ha come conseguenza un incremento dei morsi: tra il 2012 e il 2016 erano 10'000 all'anno, fra il 2017 e il 2021 si parla invece di 14'000 casi (+40%).
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