Dying of the flu isn't common at all, especially for children.
The effectiveness of the vaccine among children with high-risk health conditions was at 51 percent, which the authors class as a "significant" benefit. The incidence of such cases varies depending on the severity of the flu season.
"With an imperfect vaccine, we'll still see deaths from the flu", Flannery said.
"We still can't say if the vaccine prevents a more severe influenza among children [if they get the flu despite being vaccinated]", said Flannery. So far this year, there have been 61 pediatric deaths from influenza.
The paper titled "Influenza Vaccine Effectiveness Against Pediatric Deaths: 2010-2014" was published this month in the journal Pediatrics. These records suggest that in only 26 percent of these fatalities were the children vaccinated against influenza. However, a few years before that, around 358 died in one season. It makes you think the vaccine works less well than it does. In the United States, October through April is generally the season for flu.