Host-Range Shift Between Emerging P[8]-4 Rotavirus and Common P[8] and P[4] Strains.

Khachou, Amira; Le Moullac-Vaidye, Béatrice; Peltier, Cécile; Breiman, Adrien; Imbert-Marcille, Berthe-Marie; Ruvoen-Clouet, Nathalie; Aouni, Mahjoub; Mastouri, Maha et al. · J Infect Dis · 2020

other · Level V

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Abstract

In Tunisia, we observed that rotavirus P[8]-3 and P[4] strains in young children with gastroenteritis associate with secretor histo-blood group phenotype. In contrast, the emerging P[8]-4 strain, representing 10% of cases, was exclusively found in nonsecretor patients. Unlike VP8* from P[8]-3 and P[4] strains, the P[8]-4 VP8* protein attached to glycans from saliva samples regardless of the donor's secretor status. Interestingly, a high frequency of FUT2 enzyme deficiency (nonsecretor phenotype) was observed in the population. This may allow cocirculation of P[8]-3 and P[8]-4 strains in secretor and nonsecretor children, respectively.

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