A significant contention arose in the Mexican Congress when PAN deputy Éctor Jaime Ramírez Barba vocally blamed the current government, led by President Andrés Manuel López Obrador, for the increasing cases of measles due to insufficient vaccination. During a session in the Cámara de Diputados, Ramírez emphasized that it was unacceptable to deflect blame to historical figures like Porfirio Díaz, instead pointing to current failures in vaccine procurement that have resulted in child fatalities. This alarming assertion contests the present administration's public health strategy and draws attention to the urgency for effective vaccination programs.

Ramírez, who is also a medical professional and serves as the Secretary of the Health Commission in Congress, detailed the financial discrepancies regarding allocated funds for vaccines. He highlighted that out of 44 billion pesos designated for vaccine purchases, large sums remained unutilized—significantly affecting public health. Specifically, he noted that of 30 billion pesos approved in 2022, only 7 billion were actually spent, leaving a concerning gap of 23 billion pesos unspent, which raises serious questions about the efficacy and management of health resources.

In 2023, the continuation of this trend was expected with 14 billion pesos allocated but an expenditure of just 3 billion pesos reported so far. Ramírez concluded with a plea for immediate action to rectify this "criminal negligence," anticipating similar failures under future leadership, indicating that the consequences of these financial and operational inadequacies could have dire repercussions on public health, particularly affecting the most vulnerable populations—children needing vaccinations.