Health Local February 19, 2025

High Prevalence of Feline Leukemia in Mexico

Studies show a 15.2% prevalence of feline leukemia in cats visiting veterinarians in Mexico City. Vaccination and early detection are crucial for prevention.


High Prevalence of Feline Leukemia in Mexico

In Mexico, infection with the Feline Leukemia Virus (FeLV) affects a significant portion of the feline population. Local statistics have shown that the prevalence of this disease is 7.5% in free-roaming cats in Yucatán and 15.2% in those visiting veterinarians in Mexico City.

Alejandro Sánchez, veterinarian and technical manager of the companion animal unit of MSD Animal Health Mexico, indicated that this prevalence is high compared to other countries. For example, in the United States, the prevalence of FeLV is between 2% and 3%.

Feline leukemia is a major infectious disease worldwide that can be fatal and remain silent for years. To prevent and detect this condition early, vaccination of felines is essential.

Transmission of FeLV primarily occurs through contact with the saliva of infected cats during grooming or bites during fights, so households with multiple cats, outdoor felines, or unspayed/neutered cats are at greater risk of contracting the disease. A cat can carry the virus without showing symptoms for a time, but may eventually present signs such as anemia, cancer, immunological problems, among others.

Despite the seriousness of feline leukemia, it can be prevented and controlled through vaccination, early detection, and creating safe environments for pets. Experts recommend vaccinating all cats, especially kittens and those in at-risk situations.

In the context of Cat Day, MSD Animal Health in Mexico highlights the importance of prevention and responsible care to protect the health of felines. Therefore, it is encouraged to have frequent check-ups with the veterinarian at least twice a year. FeLV, caused by a retrovirus, can lead to anemia, cancer such as lymphoma, and suppression of the immune system, increasing the risk of secondary infections. Although there is no documented national prevalence of infectious diseases in pets in Mexico, these measures help keep cats healthy and protected.