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Is Seasonal Flu More Deadly Than COVID-19?

MADISON DAPCEVICH

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Throughout the early months of the COVID-19 pandemic in 2020, countless social media posts, high profile pundits, and even the president attempted to downplay the threat of the virus in the U.S. in various ways, including comparing its death toll to that of the seasonal flu:

covid flu

This claim is false and dangerously downplays the severity of the ongoing coronavirus pandemic. In terms of the case fatality rate, which the Centers for Disease Control and Prevention (CDC) describes as the number of people who die from a given condition, medical experts argue that COVID-19 is, in fact, deadlier than the seasonal flu. Though COVID-19 fatality rates vary largely depending on available medical infrastructure within a country, Johns Hopkins University of Medicine reports that the U.S. is among the 20 countries most affected by the virus and has a mortality rate of 3.4%. By comparison, flu infections over the last decade have resulted in a mortality rate hovering around .1%.

COVID-19 is also deadlier in terms of how many people are estimated to die from it per year. Preliminary estimates from the CDC found that the 2018-19 influenza season resulted in an estimated 34,200 deaths in the U.S. As of July 27, 2020, more than 4.2 million COVID-19 cases had been reported across 50 states, seven territories and Washington, D.C., and more than 146,500 deaths were associated with the respiratory disease — nearly four times the death toll associated with the 2018-19 flu season.

Influenza impacts can vary widely from year to year and while the infection places a “substantial burden on the health of people in the U.S. every year,” estimated annual deaths caused by the flu over the last decade are significantly lower than COVID-19 deaths reported in the first seven months of 2020:

Source: CDC

The last influenza pandemic, caused by influenza A (H1N1), occurred in 2009. Nicknamed the “swine flu,” the global outbreak resulted in approximately 61 million cases, 274,000 hospitalizations, and 12,500 deaths in the U.S. over the following year, according to the National Library of Medicine.

Comparisons aside, experts warned that the U.S. will now see the impacts of COVID-19 alongside the next flu season, which will compound the difficulties faced by already overburdened hospitals and health care workers in many states.

“Even in non-pandemic years, influenza and other etiologies of pneumonia represent the eighth leading cause of death in the United States, and respiratory viruses are the most commonly identified pathogens among hospitalized patients with community-acquired pneumonia,” wrote Dr. Benjamin Singer, a Northwestern Medicine pulmonologist who treats COVID-19 patients, in an editorial published in Science Advances.

Both the flu and COVID-19 can be severe respiratory diseases but they are caused by different types of viruses. The flu is caused by four types of influenza viruses (A, B, C, and D), whereas COVID-19 is caused by the coronavirus dubbed SARS-CoV-2, notes the CDC. The severity of infection by coronavirus or influenza is largely dependent on a number of factors, including underlying medical conditions and age. Both the flu and COVID-19 can have similar symptoms and health officials note that it is important to stay vigilant and practice proper hygiene and social distancing measures.

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