TITLE:
Penicillin-Resistant Aerococcus viridans Bacteremia Associated with Bovine Severe Respiratory Syndrome
AUTHORS:
Jacopo Guccione, Sandra Nizza, Karina Mallardo, Antonietta Cantiello, Filomena Fiorito, Antonio Di Loria, Luisa De Martino
KEYWORDS:
Respiratory Syndrome; Aerococcus viridans; Antibiotic-Resistance
JOURNAL NAME:
Open Journal of Veterinary Medicine,
Vol.3 No.2,
June
6,
2013
ABSTRACT: Aerococcus viridans, a less
frequently isolated bacteria, is a gram-positive, catalase-negative coccus,
found singly or in tetrads, with biochemical and growth characteristics of
streptococci and enterococci. This microorganism, usually susceptible to
penicillin, is often found in the environment and is infrequently associated
with human/veterinary infections. We described a case of Holstein Friesian female calf, 150-day-old,
affected by respiratory emergencies. Following the clinical signs, radiographic
analysis and bacteriological/molecular examinations carried out on blood
culture, a diagnosis of severe broncho-pulmonary disease associate with a multidrug-resistant A. viridans bacteremia was done. The present case highlights
the invasive nature of a saprophytic bacterium showing a broad profile of antibiotic-resistance including β-lactams. Furthermore, this report confirms
that the effectiveness of an antibiotic therapy is based primarily on a sure
diagnosis including susceptibility testing.