A new study suggests that it is much easier to develop the flu than previously thought.
In a study published in the New England Journal of Medicine, researchers compared the ability of people with mild flu symptoms to others in their age group to see if there were differences in how flu vaccines worked in people with moderate and severe symptoms.
They found that the flu vaccine is a better vaccine in moderate to severe symptoms compared to mild symptoms.
The researchers suggest that people who are more susceptible to flu complications, such as pneumonia, can benefit from flu vaccine doses up to the maximum recommended for those with moderate to moderate symptoms.
In the study, published in The Lancet, they also found that people with severe symptoms are less likely to develop flu complications than those with mild symptoms, which suggests that people on the higher end of the spectrum are more likely to benefit from higher doses.
The study looked at the effectiveness of the flu shot in the United States, Australia and New Zealand.
The results showed that flu vaccines were generally more effective in people who had moderate to severely flu symptoms.
But they found that those with severe flu symptoms were less likely than those who had mild symptoms to develop complications.
“Our findings suggest that, even after careful consideration of the underlying mechanisms, influenza vaccine effectiveness in severe to moderate flu symptoms is reduced and should be prioritized over the benefits of higher doses in moderate or mild flu patients,” the researchers wrote.
The findings also found a correlation between severity of symptoms and vaccine effectiveness.
“If you have mild to moderate severity symptoms and you have moderate to higher severity flu vaccine effectiveness, you should consider flu vaccine supplementation,” Dr. Mark O’Connor, lead author of the study and a professor of medicine at the University of California, San Francisco, told the New York Times.
“We found a strong correlation between the severity of the symptoms and the effectiveness, and it was significant,” Dr O’Brien said.