In response to disease outbreaks, a government policy on global travel would most likely include asking travelers to provide proof of vaccination before entering a country. This measure helps prevent the spread of diseases across borders and protects the population of the destination country.
1. Asking travelers to ensure they are sick when traveling is not a sensible policy as it could lead to the intentional spread of diseases during travel, posing a risk to other travelers and the destination country's population.
2. Asking travelers to bring new diseases into a country to increase population immunity is also not a valid policy. Introducing new diseases intentionally can have severe consequences and is not a recommended approach to building immunity.
3. Asking travelers to quickly walk through open borders to minimize workers' exposure is not an effective strategy for disease control. This policy does not address the risk of disease transmission and could potentially increase the spread of illnesses.
Therefore, the most appropriate government policy on global travel in response to disease outbreaks is to ask travelers to provide proof of vaccination before entering a country. This requirement helps ensure that travelers are protected and do not pose a significant risk to the local population in terms of disease transmission.
