Piva, S, Giacometti, F, Marti, E, Massella, E, Cabbri, R, Galuppi, R & Serraino, A 2020, 'Could honey bees signal the spread of antimicrobial resistance in the environment?', LETTERS IN APPLIED MICROBIOLOGY, vol. 70, no. 5, pp. 349-355.View/Download from: Publisher's site
Massella, E, Piva, S, Giacometti, F, Liuzzo, G, Zambrini, AV & Serraino, A 2017, 'Evaluation of bovine beta casein polymorphism in two dairy farms located in northern Italy', Italian Journal of Food Safety, vol. 6, no. 3, pp. 131-133.View/Download from: Publisher's site
© E. Massella et al., 2017. Bovine beta casein A1 is one of the most common variants in dairy cattle breeds; it is considered a risk factor in milk intolerance and in other important human diseases, because of the bioactive peptide beta casomorphin-7 (BCM7) produced by raw or processed A1-milk, but not by A2-milk, during digestion. The aim of this study was to perform a cheap and rapid method to investigate beta casein polymorphism in copious animals. The study included 2 dairy farms with a totally of 1230 cows. Beta casein genotypes were estimated evaluating Exon 7 region of bovine beta casein gene (CSN2) by sequences analysis. In the population included in the study 5 variants (A1, A2, B, F, I) and 13 genotypes (A1A1, A1A2, A1B, A1F, A1I, A2A2, A2B, A2F, A2I, BB, BF, BI, FI) were detected. The method showed high sensibility and specificity, resulted low-cost and few time consuming.
Piva, S, Gariano, GR, Bonilauri, P, Giacometti, F, Decastelli, L, Florio, D, Massella, E & Serraino, A 2017, 'Occurrence of putative virulence genes on Arcobacter butzleri isolated from three different environmental sites throughout the dairy chain', JOURNAL OF APPLIED MICROBIOLOGY, vol. 122, no. 4, pp. 1071-1077.View/Download from: Publisher's site
Bertasi, B, Losio, MN, Daminelli, P, Finazzi, G, Serraino, A, Piva, S, Giacometti, F, Massella, E & Ostanello, F 2016, 'Seasonal variability of thermophilic campylobacter spp. In raw milk sold by automatic vending machines in Lombardy', Italian Journal of Food Safety, vol. 5, no. 3.View/Download from: Publisher's site
© 2016, Page Press Publications. All rights reserved. In temperate climates, a seasonal trend was observed in the incidence of human campylobacteriosis cases, with peaks reported in spring and autumn in some countries, or in summer in others; a similar trend was observed in Campylobacter spp. dairy cattle fecal shedding, suggesting that cattle may play a role in the seasonal peak of human infection. The objectives of this study were to assess if a seasonal trend in thermophilic Campylobacter spp. contamination of raw milk exists and to evaluate a possible relation between this and the increase of human campylobacteriosis incidence in summer months. The results showed a mean prevalence of 1.6% of milk samples positive for thermophilic Campylobacter spp. with a wide range in different months during the three years considered of 0.0-3.1%. The statistical analysis showed a significant difference (P<0.01) of the prevalence of positive samples for thermophilic Campylobacter spp. between warmer and cooler months (2.3% vs 0.6%). The evidence of a seasonal trend in thermophilic Campylobacter spp. contamination of raw milk sold for direct consumption, with an increase of the prevalence in warmer months, may represent one of the possible links between seasonal trend in cattle fecal shedding and seasonal trend in human campylobacteriosis.
Piva, S, Caffara, M, Pasquali, F, Castagnetti, C, Iacono, E, Massella, E, Zanoni, RG & Galuppi, R 2016, 'Detection and quantification of Cryptosporidium oocysts in environmental surfaces of an Equine Perinatology Unit', PREVENTIVE VETERINARY MEDICINE, vol. 131, pp. 67-74.View/Download from: Publisher's site