Which procedure helps in preventing tick and flea infestations?

Routine grooming is essential in preventing tick and flea infestations because it involves regularly brushing and inspecting a pet's coat for any signs of parasites. This practice can help remove loose fur, dirt, and potential pests before they can establish an infestation. Grooming also allows for early detection of ticks and fleas, enabling timely intervention to treat and eliminate these parasites before they become a larger problem for the pet and household.

While vaccinations, spaying and neutering, and specialized diets all play important roles in overall pet health and well-being, they do not directly address the prevention or management of tick and flea infestations. Vaccinations protect against infectious diseases, spaying and neutering prevent unwanted litters and certain health issues, and specialized diets focus on nutritional aspects of a pet's health, but none of these specifically target external parasites like fleas and ticks.