On this occasion we would like to share some practical and simple suggestions for correct handling of biological products and application of vaccines, mainly to avoid reactions, infectious diseases transmitted by contaminated syringes and needles. We will consider three different instances: Prior to vaccination, the vaccination itself, post-vaccination handling. Prior to vaccination we must maintain a correct cold chain of the vaccine: First of all, maintain the good condition of the facilities such as chutes and corrals, repairing in time such as goalposts, pikes, posts, boards, and clamps to avoid injuries to animals and staff, allowing work to be safe and fluid and avoiding animal escape during work. Have or prepare flags for herding animals in the chutes. Animal welfare is more than proven, it also helps to work faster and better. ● The laboratory will be responsible for delivering the vaccine in good condition to the veterinary trade and the same will be done with the producer, who must take the vaccine to a refrigerator and keep it between 2 and 8 degrees Celsius. ● It will ensure that the needles and syringes are in good condition, clean and disinfected to avoid surprises when starting the work, preventing delays or incorrect application of the vaccine. ● If possible, enclose the categories of animals to be vaccinated the day before vaccination, remaining the night in a corral with water. If the troop arrives on the same day of vaccination, try to leave the animals for a while to rest from the transfer. ● Take the amount of vaccines to the chutes that are going to be applied at that time, whether in the morning or afternoon, and keep them in a cooler with plenty of refrigerant. ● In the chutes, avoid or minimize rough work, avoid running and suppress the use of dogs, prods and sticks, thus avoiding the generation of stress that harms a good immune response. When enclosing cattle with calves/breeding cows, be careful not to cause the calves to become cramped. In some cases, it is advisable to vaccinate the separated calves first and then the mothers or vice versa. Vaccination itself ● Never overfill the egg or funnel and the sleeve. Do not work faster the other way around as the cattle swirl around in the middle and refuse to enter the tube. Never vaccinate with an open tube, thus avoiding the formation of abscesses, hematomas, and dosage errors. Do not hesitate to apply a new dose. Post-vaccination management ● Once the vaccination is finished, we should observe the animals for a while to detect possible anaphylaxis reactions in case any animal appears, apply treatment with corticosteroids and antihistamines; If you have problems, we should start taking the troops to the respective paddocks always gently in order to continue minimizing stress and contributing to good immunity, ● at the end we should take the surplus vaccine that we have taken to the refrigerator again, carefully disinfect and wash the instruments for future applications. To close the work, we should complete the records and the health form of the establishment. Keys to improve livestock production. Keys to improve meat production keys to improve milk production. what is dual purpose cattle how many liters of milk does a dairy cow give how can leptospirosis be prevented what is the causal agent of leptospirosis how does leptospira affect what is leptospirosis what is leptospirosis in cattle what is the treatment for leptospirosis how is leptospirosis spread how is bovine tuberculosis spread how is brucellosis transmitted in cattle what is leptospirosis in cattle what is leptospirosis in cattle what is cattle breeding how much does a calf weigh at birth how should a newborn calf be fed calf raising calf rearing system calf herd collective herd dairy farm trichomoniasis bluetongue URSB TDT How to synchronize your cow in Spanish Heat synchronization protocol