8 Lessons We Can Learn From the COVID-19 Pandemic

Note: Information in this article was accurate at the time of original publication. Because information about COVID-19 changes rapidly, we encourage you to visit the websites of the Centers for Disease Control & Prevention (CDC), World Health Organization (WHO), and your state and local government for the latest information.

The COVID-19 pandemic changed life as we know it—and it may have changed us individually as well, from our morning routines to our life goals and priorities. Many say the world has changed forever. But this coming year, if the vaccines drive down infections and variants are kept at bay, life could return to some form of normal. At that point, what will we glean from the past year? Are there silver linings or lessons learned?

“Humanity's memory is short, and what is not ever-present fades quickly,” says Manisha Juthani, MD, a Yale Medicine infectious diseases specialist. The bubonic plague, for example, ravaged Europe in the Middle Ages—resurfacing again and again—but once it was under control, people started to forget about it, she says. “So, I would say one major lesson from a public health or infectious disease perspective is that it’s important to remember and recognize our history. This is a period we must remember.”

We asked our Yale Medicine experts to weigh in on what they think are lessons worth remembering, including those that might help us survive a future virus or nurture a resilience that could help with life in general.

What happened: The Centers for Disease Control and Prevention (CDC) relaxed its masking guidance for those who have been fully vaccinated. But when the pandemic began, it necessitated a global effort to ensure that everyone practiced behaviors to keep themselves healthy and safe—and keep others healthy as well. This included the widespread wearing of masks indoors and outside.

What we’ve learned: Not everyone practiced preventive measures such as mask wearing, maintaining a 6-foot distance, and washing hands frequently. But, Dr. Juthani says, “I do think many people have learned a whole lot about respiratory pathogens and viruses, and how they spread from one person to another, and that sort of old-school common sense—you know, if you don’t feel well—whether it’s COVID-19 or not—you don’t go to the party. You stay home.”

Masks are a case in point. They are a key COVID-19 prevention strategy because they provide a barrier that can keep respiratory droplets from spreading. Mask-wearing became more common across East Asia after the 2003 SARS outbreak in that part of the world. “There are many East Asian cultures where the practice is still that if you have a cold or a runny nose, you put on a mask,” Dr. Juthani says.

She hopes attitudes in the U.S. will shift in that direction after COVID-19. “I have heard from a number of people who are amazed that we've had no flu this year—and they know masks are one of the reasons,” she says. “They’ve told me, ‘When the winter comes around, if I'm going out to the grocery store, I may just put on a mask.’”

What happened: Doctors and patients who have used telehealth (technology that allows them to conduct medical care remotely), found it can work well for certain appointments, ranging from cardiology check-ups to therapy for a mental health condition. Many patients who needed a medical test have also discovered it may be possible to substitute a home version.

What we’ve learned: While there are still problems for which you need to see a doctor in person, the pandemic introduced a new urgency to what had been a gradual switchover to platforms like Zoom for remote patient visits. 

More doctors also encouraged patients to track their blood pressure at home, and to use at-home equipment for such purposes as diagnosing sleep apnea and even testing for colon cancer. Doctors also can fine-tune cochlear implants remotely.

“It happened very quickly,” says Sharon Stoll, DO, a neurologist. One group that has benefitted is patients who live far away, sometimes in other parts of the country—or even the world, she says. “I always like to see my patients at least twice a year. Now, we can see each other in person once a year, and if issues come up, we can schedule a telehealth visit in-between,” Dr. Stoll says. “This way I may hear about an issue before it becomes a problem, because my patients have easier access to me, and I have easier access to them.”

Meanwhile, insurers are becoming more likely to cover telehealth, Dr. Stoll adds. “That is a silver lining that will hopefully continue.”

What happened: Given the recent positive results from vaccine trials, once again vaccines are proving to be powerful for preventing disease.

What we’ve learned: Vaccines really are worth getting, says Dr. Stoll, who had COVID-19 and experienced lingering symptoms, including chronic headaches. “I have lots of conversations—and sometimes arguments—with people about vaccines,” she says. Some don’t like the idea of side effects. “I had vaccine side effects and I’ve had COVID-19 side effects, and I say nothing compares to the actual illness. Unfortunately, I speak from experience.”

Dr. Juthani hopes the COVID-19 vaccine spotlight will motivate people to keep up with all of their vaccines, including childhood and adult vaccines for such diseases as measles, chicken pox, shingles, and other viruses. She says people have told her they got the flu vaccine this year after skipping it in previous years. (The CDC has reported distributing an exceptionally high number of doses this past season.)  

But, she cautions that a vaccine is not a magic bullet—and points out that scientists can’t always produce one that works. “As advanced as science is, there have been multiple failed efforts to develop a vaccine against the HIV virus,” she says. “This time, we were lucky that we were able build on the strengths that we've learned from many other vaccine development strategies to develop multiple vaccines for COVID-19.” 

What happened: COVID-19 magnified disparities that have long been an issue for a variety of people.

What we’ve learned: Racial and ethnic minority groups especially have had disproportionately higher rates of hospitalization for COVID-19 than non-Hispanic white people in every age group, and many other groups faced higher levels of risk or stress. These groups ranged from working mothers who also have primary responsibility for children, to people who have essential jobs, to those who live in rural areas where there is less access to health care.

“One thing that has been recognized is that when people were told to work from home, you needed to have a job that you could do in your house on a computer,” says Dr. Juthani. “Many people who were well off were able do that, but they still needed to have food, which requires grocery store workers and truck drivers. Nursing home residents still needed certified nursing assistants coming to work every day to care for them and to bathe them.”  

As far as racial inequities, Dr. Juthani cites President Biden’s appointment of Yale Medicine’s Marcella Nunez-Smith, MD, MHS, as inaugural chair of a federal COVID-19 Health Equity Task Force. “Hopefully the new focus is a first step,” Dr. Juthani says.

What happened: There was a rise in reported mental health problems that have been described as “a second pandemic,” highlighting mental health as an issue that needs to be addressed.

What we’ve learned: Arman Fesharaki-Zadeh, MD, PhD, a behavioral neurologist and neuropsychiatrist, believes the number of mental health disorders that were on the rise before the pandemic is surging as people grapple with such matters as juggling work and childcare, job loss, isolation, and losing a loved one to COVID-19.

The CDC reports that the percentage of adults who reported symptoms of anxiety of depression in the past 7 days increased from 36.4 to 41.5 % from August 2020 to February 2021. Other reports show that having COVID-19 may contribute, too, with its lingering or long COVID symptoms, which can include “foggy mind,” anxiety, depression, and post-traumatic stress disorder.

 “We’re seeing these problems in our clinical setting very, very often,” Dr. Fesharaki-Zadeh says. “By virtue of necessity, we can no longer ignore this. We're seeing these folks, and we have to take them seriously.”

What happened: While everyone’s situation is different­­ (and some people have experienced tremendous difficulties), many have seen that it’s possible to be resilient in a crisis.

What we’ve learned: People have practiced self-care in a multitude of ways during the pandemic as they were forced to adjust to new work schedules, change their gym routines, and cut back on socializing. Many started seeking out new strategies to counter the stress.

“I absolutely believe in the concept of resilience, because we have this effective reservoir inherent in all of us—be it the product of evolution, or our ancestors going through catastrophes, including wars, famines, and plagues,” Dr. Fesharaki-Zadeh says. “I think inherently, we have the means to deal with crisis. The fact that you and I are speaking right now is the result of our ancestors surviving hardship. I think resilience is part of our psyche. It's part of our DNA, essentially.”

Dr. Fesharaki-Zadeh believes that even small changes are highly effective tools for creating resilience. The changes he suggests may sound like the same old advice: exercise more, eat healthy food, cut back on alcohol, start a meditation practice, keep up with friends and family. “But this is evidence-based advice—there has been research behind every one of these measures,” he says.

But we have to also be practical, he notes. “If you feel overwhelmed by doing too many things, you can set a modest goal with one new habit—it could be getting organized around your sleep. Once you’ve succeeded, move on to another one. Then you’re building momentum.”

What happened: People who were part of a community during the pandemic realized the importance of human connection, and those who didn’t have that kind of support realized they need it.

What we’ve learned: Many of us have become aware of how much we need other people—many have managed to maintain their social connections, even if they had to use technology to keep in touch, Dr. Juthani says. “There's no doubt that it's not enough, but even that type of community has helped people.”

Even people who aren’t necessarily friends or family are important. Dr. Juthani recalled how she encouraged her mail carrier to sign up for the vaccine, soon learning that the woman’s mother and husband hadn’t gotten it either. “They are all vaccinated now,” Dr. Juthani says. “So, even by word of mouth, community is a way to make things happen.”

It’s important to note that some people are naturally introverted and may have enjoyed having more solitude when they were forced to stay at home—and they should feel comfortable with that, Dr. Fesharaki-Zadeh says. “I think one has to keep temperamental tendencies like this in mind.”

But loneliness has been found to suppress the immune system and be a precursor to some diseases, he adds. “Even for introverted folks, the smallest circle is preferable to no circle at all,” he says.

What happened: Scientists and nonscientists alike learned that a virus can be more powerful than they are. This was evident in the way knowledge about the virus changed over time in the past year as scientific investigation of it evolved.

What we’ve learned: “As infectious disease doctors, we were resident experts at the beginning of the pandemic because we understand pathogens in general, and based on what we’ve seen in the past, we might say there are certain things that are likely to be true,” Dr. Juthani says. “But we’ve seen that we have to take these pathogens seriously. We know that COVID-19 is not the flu. All these strokes and clots, and the loss of smell and taste that have gone on for months are things that we could have never known or predicted. So, you have to have respect for the unknown and respect science, but also try to give scientists the benefit of the doubt,” she says.

“We have been doing the best we can with the knowledge we have, in the time that we have it,” Dr. Juthani says. “I think most of us have had to have the humility to sometimes say, ‘I don't know. We're learning as we go.’"

Information provided in Yale Medicine articles is for general informational purposes only. No content in the articles should ever be used as a substitute for medical advice from your doctor or other qualified clinician. Always seek the individual advice of your health care provider with any questions you have regarding a medical condition.