How older adults with chronic illnesses can assess whether to get the Covid-19 vaccine - CNN

In large clinical trials sponsored by drugmakers Pfizer and Moderna, the vaccines achieved substantial protection against significant illness, with efficacy for older adults ranging from 87% to 94%.

But people 65 and older undergoing cancer treatment were not included in these studies.

Regarding risk, he noted that older adults are the people most likely to become severely ill and perish from Covid, accounting for about 80% of deaths to date — a compelling argument for vaccination.

Regarding safety, there is no evidence at this time that cancer patients are more likely to experience side effects from the Pfizer-BioNTech and Moderna vaccines than other people.

Generally, "we are confident that these vaccines are safe for (cancer) patients," including older patients, said Dr.

Armin Shahrokni, a Memorial Sloan Kettering geriatrician and oncologist.

The exception, which applies to everyone, not just cancer patients: people who are allergic to Covid-19 vaccine components or who experience severe allergic responses after getting a first shot shouldn't get Covid-19 vaccines.

Efficacy is a consideration for patients whose underlying cancer or treatment suppresses their immune systems.

Catherine Liu, a professor in the vaccine and infectious disease division at Fred Hutchinson Cancer Research Center in Seattle.

In new guidelines published late last week, the National Comprehensive Cancer Network, an alliance of cancer centers, urged that patients undergoing active treatment be prioritized for vaccines as soon as possible.

William Cance, said his organization is "strongly in favor of cancer patients and cancer survivors getting vaccinated, particularly older adults." Given vaccine shortages, he also recommended that cancer patients who contract Covid-19 get antibody therapies as soon as possible, if their oncologists believe they're good candidates.

This is an effort to stem the tide of Covid-related illness and death that has swept through nursing homes and assisted living facilities — 37% of all covid deaths as of mid-January.

The Alzheimer's Association also strongly encourages immunization against Covid-19, "both for people (with dementia) living in long-term care and those living in the community, said Beth Kallmyer, vice president of care and support.

"What I think this question is trying to ask is 'Will my loved one live long enough to see the benefit of being vaccinated?'" said Dr.