An estimated 300 million Americans are at risk of getting sick from the flu this year, according to the Centers for Disease Control and Prevention.
And that number will continue to rise, as the coronavirus season nears its end, according a study published Monday in the New England Journal of Medicine.
The study was based on a new survey of health-care workers.
The findings show that people who had not been vaccinated with the flu vaccine are more likely to contract the flu after working in the field or in other high-risk situations, the authors say.
People who have not received the vaccine in the past year are also more likely than others to contract a strain of influenza.
The researchers used the Centers and Statewide Influenza Surveillance System to collect data on the influenza virus circulating among the general population in 18 states and Washington, D.C. They also tracked flu-related deaths and hospitalizations for the same groups of people in the U.S. over the past two years.
In the report, the researchers found that those who were vaccinated and did not get sick after a recent flu vaccination were more likely as a group to have contracted a flu strain that was milder than the one that was circulating in the United States.
They found that the overall number of flu-associated deaths among those who had received the flu shot was 2.4 times greater than the total number of deaths among people who did not have the vaccine, the study says.
The people who were not vaccinated had a higher rate of hospitalization, as well as having higher overall rates of respiratory illness and severe respiratory illness.
But those who did have the flu-containing vaccine had lower rates of illness than the people who didn’t get vaccinated, the report says.
Among the results: Vaccinated people had fewer infections in the first 24 hours of their illness and were less likely to develop pneumonia or influenza-related pneumonia.
Those who had the vaccine had a lower risk of dying from pneumonia or of being hospitalized for a respiratory illness than those who didn.
People with a history of respiratory illnesses who received the influenza vaccine were at a lower incidence of hospitalizations, respiratory illnesses, pneumonia and influenza-associated pneumonia.
Overall, people who have been vaccinated have a lower death rate from the influenza, and their rate of illness is also lower than the overall U.