The United States is currently grappling with a surge in ‘super flu’ cases, with some areas experiencing unprecedented levels of infections. According to the most recent data from the Centers for Disease Control and Prevention (CDC), there has been a significant spike in flu cases, with a 53 percent increase in positive tests for the week ending December 20 compared to the previous week. This represents a nearly 75 percent rise from the same period last year.

The impact on healthcare facilities is stark, as hospitalizations due to the flu have climbed by 51 percent in the same time frame. Alarmingly, the number of individuals currently hospitalized has nearly doubled compared to December of the previous year.

The updated figures, which cover data up to December 20, indicate ‘very high’ flu transmission rates across 21 states. Among the hardest-hit areas are New York City, New York state, New Jersey, South Carolina, Louisiana, and Colorado, where the infection rates are notably high.

New York state alone reported over 71,000 flu cases last week, marking the highest number of flu cases ever recorded in a single week for the state.

In New York, more than 71,000 flu cases were reported last week, the most the state has ever had in a single week. 

Additionally, in the last week, two children in Kentucky and Alabama have died of the flu. According to the CDC data, there have been eight pediatric flu-related deaths this virus season. 

Due to the surge, hospitals are enacting Covid-era restrictions on visitors and bringing back mask mandates to slow the spread of the dangerous new flu strain H3N2 subclade K, which experts believe is behind the flu’s meteoric rise. 

Duke Health in North Carolina announced this week it will limit hospital visitors starting January 6, 2026, to just two people ages 12 and over per patient. And Iredell Memorial Hospital in North Carolina said beginning this week, it will not allow anyone under 14 to visit. 

Noah Smothers, a 14-year-old from Alabama, died this week from flu complications, his family and high school announced

This year’s dominant flu strain is brand new to people’s immune systems, making them highly vulnerable and at an increased risk of severe, hospitalizing illness. 

Dr Neal Shipley, medical director of Northwell Health-GoHealth Urgent Care, previously told Daily Mail it is important to recognize the symptoms that ring alarm bells so you know when to seek expert help.

Shipley said that in children, the flu comes on suddenly and may also cause vomiting and diarrhea. He said people over the age of 65 are at the highest risk of complications, including hospitalization and death. 

‘If your symptoms worsen quickly, or you have trouble breathing, weakness, dehydration or symptoms that don’t improve after a few days, you should find your nearest urgent care,’ he added.

The flu typically peaks between December and February, but officials fear the end of the surge is nowhere in sight. 

Andrew Pekosz, a virologist at Johns Hopkins Bloomberg School of Public Health, told NPR: ‘When you’re in the middle of seeing the curve start to go up, we just don’t have any sense of where it’s going to stop.

‘That’s the big concern in most of the medical communities right now.’ 

The CDC estimates there have been at least 7.5 million flu illnesses, 81,000 hospitalizations and 3,100 deaths so far this season. 

Duke Health in North Carolina among the US hospitals limiting visitors to slow the flu’s spread

The left image shows the hospitalization rates for the flu for the week ending December 20, 2025. The right image shows the rate at this time last year. This year’s rate is nearly twice as high

The latest data shows one in four flu tests during the week of December 20 came back positive, up from 15 percent the week before. 

The hospitalization rate also increased from 11 per 100,000 people to 18.2 per 100,000 in just the span of a week. This is nearly twice the 9.6 per 100,000 rate at this time last year. 

Additionally, outpatient respiratory illness accounted for 6 percent of doctor visits during the week of December 20 compared to 4 percent the week before.

Among the pediatric deaths was 14-year-old Noah Smothers from Alabama, who died Monday from flu-related complications. 

The teenager’s sister posted on Facebook this week: ‘Our hearts are broken. Our best friend, brother, my first baby. 

‘There’s not [sic] words to describe the hurt we are feeling right now. But we have the peace of knowing that he is with our Lord and savior. 

‘It was such an honor to be his sister. He loved big and always had jokes to tell. Hold your loved ones extra close and let them know how much you love them. 

‘It’s my prayer that Noah’s life helps to bring others closer to God. And that if you don’t know Him as your Lord that He will open your heart.’

The above CDC graph shows the gradual increase in positive influenza tests through December 20, the latest available data

Smothers is pictured here on the right. His sister wrote after his passing: ‘Our hearts are broken. Our best friend, brother, my first baby.’

Kentucky health officials also announced a child from Kenton County, on the southern border with Ohio, died of the flu this week. The unidentified child had not received this year’s flu vaccine.  

Influenza A, which includes subclade K and accounts for three in four flu cases, can best be prevented with an annual vaccine, which is 30 to 75 percent effective. 

As of late November, 40 percent of American adults have received this season’s flu shot, which is in line with last year’s figures. 

Dr Ken Redcross, an internal medicine physician in New York and spokesman for Boiron USA, also advised handwashing and steering clear of anyone who may be sick. 

He previously told the Daily Mail: ‘The best way to reduce flu risk during and after the holidays is to limit exposure where possible.’