Sometimes I marvel that I’m alive because of medical science and what it’s capable of in the fight against cancer, during the search for a COVID-19 vaccine my sense of wonder was renewed. Never before in human history have vaccines for a pathogen entered final stage clinical trials and received approval for distribution to the public so rapidly. Just over a year ago, when the death toll from the coronavirus stood at one and neither it nor the disease it caused had a name, a team of Chinese scientists uploaded its genetic sequence to a public site. That kicked off the record-breaking rush to develop vaccines. It’s difficult to associate anything to do with this pandemic with good fortune, but the fact that the culprit was a coronavirus — one that was strikingly similar to others that had previously leapt from animals to people — meant scientists could quickly rejigger vaccine projects in the works for those. It was almost like swapping a blue Lego for a red one in their assemblies.
In December 2020, Health Canada authorized the Pfizer-BioNTech COVID-19 vaccine. Soon there was more encouraging news when they officially authorized a second vaccine for the virus, an injection manufactured by Moderna. The first Canadians to be offered the country’s limited inventory of the vaccines were those considered to be most vulnerable, the staff and residents of nursing homes and long-term care homes were prioritized. The frontline doctors and nurses who have been risking their own lives during this pandemic were also given appointments to receive their immunizations against COVID-19. I watched, as some of the health care workers receiving the vaccine shed tears of joy and relief. Many proudly posted photographs of themselves getting vaccinated on social media, reassuring the public and preparing us all for when it would eventually be our turn.
Naturally there are segments of the population that are hesitant or sceptical about the new COVID-19 vaccines and are unsure if they should be immunized. History reveals that vaccine scepticism is as old as vaccines themselves. Increased resistance to compulsory smallpox vaccination during the 1870s and 1880s exposed the fragility of trust in both the political and medical establishment. The most radical opponents to vaccines used demonstrations and publishing to rally their cause. The situation is similar today, many doctors and infectious disease experts acknowledge that their work has been made more challenging due to the anti-vaccine movement.
Making sure that patients receive clear and accurate information is essential and everyone has a role to play. Ultimately preventing misinformation is a shared responsibility. The flow of medical knowledge works best when researchers, journalists and the public are strongly connected and considerate of one another. Nineteenth-century doctors tried to maintain boundaries between scientific journalism and the media, but were unable to prevent the public and journalistic demand for health information. That desire remains with us today. But even working together, the solution isn’t simple, experts maintain that changing behaviour in vaccine hesitant patients, isn’t always as easy as correcting misinformation. There’s still an emotional gap and trust gap that physicians regularly need to bridge in order to elicit this behavioural change.
Like all informed people, I accept the scientific conclusion that if you have active cancer, you’re at a higher risk for more serious outcomes if you acquire COVID-19. Cancer is considered an underlying medical condition. It’s a scientific fact that many cancer treatments, including surgery, chemotherapy and radiation therapy, can weaken your immune system, making it harder for you to fight the virus. Initial clinical trials on COVID-19 vaccines did not include people with cancer or those receiving treatments that can suppress the immune system. However, many professional organizations are endorsing the vaccines’ safety and efficacy for this group. Since individuals living with cancer are at increased risk of serious illness resulting from COVID-19, there is growing consensus among health authorities and oncologists that the benefits of vaccination outweigh the risks. Some exceptions include people who are severely immunocompromised or who have certain severe allergies .The National Cancer Institute emphasizes that people, including those with underlying medical conditions such as cancer, may get vaccinated if they have no history of severe allergic reaction (e.g., anaphylaxis) to any component of the vaccine.
As a final point, cancer patients going through active treatment are definitely at higher risk for COVID-19 complications, but what about cancer survivors or those whose cancer is in remission, such as myself? Little data is available to date on how the virus affects cancer survivors, but some early research suggests that we might also be at a higher risk for severe COVID-19 outcomes. One UK study found that the majority of comorbidities thought to be associated with poor COVID-19 outcomes were more common in the cancer survivors than the cancer-free controls. In general, cancer survivors had significantly higher rates of diabetes, asthma, and other respiratory disease, as well as more chronic heart, liver, and renal disease, and neurologic conditions, than controls. Nine years after my cancer diagnosis I appear fortunate to have few of these lasting health complications. Still I’ve made up my mind, after considering the research and the scientific facts, that I will be getting vaccinated as soon as I’m given the opportunity.
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I got the vaccine because I was over 65 but my cancer was also a concern. Recently my son told me his friend’s mother is refusing though she is likely at more risk than some others. But persuading someone that their thinking may be faulty is a thankless and sometimes hopeless task. Just a few weeks ago I read an article about misinformation among nurses who we expect would be among the most informed. I guess we accept that with all the valid information out there is the mistakenly and deliberately wrong. And sifting through it becomes too daunting and requires just faith in the outcome and acceptance that some will always refuse.
I’m glad that you’ve already been vaccinated against COVID-19. I still haven’t and I find it frustrating sometimes that the vaccine rollout in Canada is quite slow compared to the US. You are right that a small segment of the population won’t be vaccinated, either because they can’t be or they refuse. However, hopefully we can achieve herd immunity with COVID-19. There would be resistance to the spread of the disease within the population based on pre-existing immunity of a high proportion of individuals. This would be as a result of previous infection, but mainly due to mass vaccination.