evidence: These enhanced precautions are particularly important for people who are around vulnerable individuals, such as those who are elderly or have immune function that’s been blunted by medication or an illness, like cancer. [...] Cohen emphasized that, first and foremost, people need to stay up to date on their vaccines. [...] The CDC says its updated guidance will include specific considerations for people who are at higher risk from respiratory illnesses, such as adults over 65, those who are immunocompromised, people with disabilities or those who are pregnant or have recently been pregnant.