Which class of substances is expected to be used more to combat climate-sensitive diseases?

The most appropriate choice is vaccines. Climate-sensitive diseases, which are often influenced by environmental factors and climate change, can lead to outbreaks of diseases that can be prevented through vaccination. Vaccines work by preparing the immune system to fight specific pathogens, thus preventing diseases that might become more prevalent in changing climates.

Pesticides, while helpful in controlling disease vectors like mosquitoes, primarily serve an agricultural purpose and may not directly combat diseases in a comprehensive public health perspective. Antibiotics are effective against bacterial infections but do not address viral diseases that might spread more widely due to climate variations. Plant-based nutrients may support overall health and nutrition but lack the specific targeted preventive approach that vaccines provide against infectious diseases arising in altered climate conditions. Therefore, the focus on vaccines aligns with the public health strategy of preventing disease outbreaks that are likely influenced by climate changes.