Senator Laura Esquivel of the PAN criticized the Morena party for suspending vaccination campaigns, attributing the deaths of 28 children, 17 of whom are under seven, to this decision. She referred to these deceased children as '4T children', indicating they were born under the current administration. This statement comes in reaction to IMSS director Zoé Robledo's remarks, which directed blame to former presidents Felipe Calderón and Enrique Peña Nieto for previous lapses in vaccination.

Esquivel highlighted that there are 9,000 reported cases of measles in the country, which emphasizes a serious health concern amidst allegations of political negligence. The senator charged that the government's focus on other infrastructure projects, claimed to benefit political allies, has detracted from critical public health investments like vaccination programs. This criticism reflects larger issues within Mexico's public health management during the pandemic recovery phase.

The ongoing debate over blame for the measles outbreak encapsulates the political tensions between the PAN and Morena. As more cases of measles continue to surface, this contentious exchange could potentially influence public perceptions of government effectiveness in health crisis management and vaccination policy, especially among vulnerable populations such as young children.