Final answer:
Taco Bell enforced a thorough cleaning and regular maintenance program for their air conditioning system to prevent biofilm growth, ensuring a clean and safe environment for customers.
Step-by-step explanation:
After dealing with infections, the Taco Bell store has taken serious measures to ensure their establishment remains sparkling clean. The store undertook a comprehensive cleaning of the air conditioning system, which is a critical step in preventing contaminants and ensuring overall store hygiene. In addition to the thorough cleaning, Taco Bell implemented a regular maintenance program. This program is designed to prevent the growth of harmful microorganisms, such as biofilms, within the cooling towers that are part of the air conditioning system. Regular maintenance and review of cleaning practices are essential, not only at the affected facility but across all other facilities, to maintain the health and safety standards expected by customers and regulatory bodies.