A hospital in Louisiana is treating thousands of more flu patients than it did this time last year.
Children's Hospital New Orleans has seen more than 1,400 cases of influenza since the season started in October.
This time in 2018, it was just nine cases - an 155-fold increase.
A majority of those cases are among people who are not fully vaccinated against the flu, reported CNN.
It comes on the heels of a new survey that found nearly 40 percent of US adults don't plan to get flu shots this season.
Children's Hospital New Orleans (pictured) has treated more than 1,400 cases of the flu
The Centers for Disease Control and Prevention (CDC) tracks flu activity across 10 stages from minimal to high.
As of November 23, Louisiana and four other states as well as Puerto Rico had the highest level of activity.
The previous week, only Louisiana had reached this level, which it's held since late October. Additionally, compared to this time last year, no states had reached the highest level.
CNN reported that Ochsner Health System, the largest nonprofit health system in Louisiana, saw nearly 7,000 flu cases in November, nearly 1,400% more than last November.
The CDC said yesterday that, so far this season, five flu-related pediatric deaths have been confirmed.
The agency said that about 80 percent of such deaths occur in children who did not receive the flu shot.
'It's concerning not to have kids immunized and protected when the flu starts to circulate,' Dr Amanda Jackson, primary care medical director at Children's Hospital New Orleans, told