If a cow has been treated with penicillin, can it affect a person allergic to this antibiotic when they eat meat or milk?

Both the meat and milk sold packaged are subject to rigorous controls by analysts who are in charge of checking their color, taste, smell, bacterial load, protein content, fat, acidity, temperature, absence of antibiotics and aflatoxins, to ensure they meet quality parameters. Before putting these products on sale, the absence of antibiotics – the most common is penicillin – that are supplied to sick cows will be required, since they can generate allergies in consumers . In fact, human sensitization to the antibiotic sometimes occurs inadvertently, through exposure to the environment or through the diet from animal feeds containing antibiotics, or when the milk contains penicillin, due to cows with mastitis becoming undergo treatment with this drug.