The recent One World: Together at Home virtual concert brought together musical talent from around the world to thank front-line health workers, and raised about US$128 million to support COVID-19 response efforts globally. Celebrities and politicians thanked those on the front lines of the response, including health-care workers and scientists working on COVID-19, those working in the food supply chain, as well as sanitation, delivery and mail workers.

However, nobody acknowledged all the people in public health agencies who have been working tirelessly during this crisis. This includes public health nurses and physicians, health inspectors and educators, laboratory technicians, epidemiologists and statisticians.

These are the people who work in the background to keep us healthy. They process the tests that identify who has the disease. They produce the statistics and models that track how the disease is progressing through our countries.

Read more: Predicting possible outcomes to coronavirus and other pandemics with models and simulations

The lack of acknowledgement doesnt surprise me. The work of public health is invisible, largely unrecognized by society. Despite increases to general spending on medical services, public health agencies are regularly subjected to budget cuts.

I say this not just as a disgruntled public health specialist, upset to see my colleagues overlooked. There is something much more significant about our societys fixation on front-line health care and medical approaches to disease management.

For the past century we have medicalized disease prevention and management for both infectious and chronic diseases. We focus on early detection and treatment (known as screening) and therapies (chemoprophylaxis) for disease prevention. Such medical models run counter to what is known as population health.

In a population health approach, we consider everyone and examine what keeps people healthy. Social and economic determinants of health are much more strongly related to health outcomes than biologic factors.

A population health approach promotes healthy living, healthy environments and healthy social policies balanced with appropriate medical interventions for those who need them. For example, risk of cardiovascular disease can be reduced through a focus on physical activity, good nutrition and smoking cessation. Population health approaches look at the environment in which people live and ensure they have the means and access to services to lead healthy lives.

In contrast, the medical model might focus on finding the people at highest risk for cardiovascular disease through screening tests and then prescribing them drugs. Research has consistently shown that a population health approach has greater impact on health status and is more equitable across society.

What does this mean for our responses to COVID-19? The narrative to date has been dominated by the medical model testing and the search for treatments, ICU beds and ventilators.

We absolutely do need to focus on these factors to ensure we can treat those who develop severe disease. But this fixation has come at the expense of the population health perspective.

And I mean this literally. Newscasts are dominated by clinicians on the front lines and those with a biomedical perspective. How often have we seen Anthony Fauci, the head of the National Institute of Allergy and Infectious Diseases, versus Robert Redfield, the head of the Centers for Disease Control and Prevention? Fauci has done an incredible job, but the perspective of Redfield is also important.

The medical model has focused on the immediate needs. To get us out of this, the medical model points to a vaccine which could take years to roll out as the solution.

A population health perspective to COVID-19 considers the impact on the entire population, not just those with disease. It applies an equity lens to ensure no one gets left behind. A population health perspective will consider whether the consequences of continuing our current restrictive measures will cause more harm than good in the long run.

Socio-economic status is the strongest determinant of health. Long-term economic harm may have greater health consequences than COVID-19. But the deaths from COVID-19 are visible and in the news. The deaths that might result from the economic consequences will only be seen in statistics we wont know who was directly affected. They will be invisible, just like public health.

We need to thank our public health workers. We also need to listen to them.

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Even during the coronavirus pandemic, the role of public health workers is unrecognized - The Conversation CA