Update Note: This article reports new information involving the 2026-27 U.S. flu season following Nature World News' earlier coverage. The newest data come from CDC's FluView report for Week 42, covering the week ending Oct. 24, 2026, and published Oct. 30, 2026. CDC typically releases its next weekly report on Fridays.

A First Child Death and a Record Week 42 Rate

Flu hospital admissions are likely to keep rising nationwide through at least mid-November, according to CDC forecasts released alongside the agency's latest surveillance report. The same report recorded the first flu-associated death of a child in the 2026-27 season.

CDC's Week 42 FluView report said its FluSight forecasts predict "a likely increase nationally in both flu hospital admissions" and in the share of emergency department visits linked to flu for the week ending Nov. 14. The forecast range for that week runs from 4,800 to 23,200 new hospital admissions.

For households, the practical question has shifted from "Is flu season here?" to "What should we do before it peaks?" The guidance that follows applies to families with young children, adults 65 and older, people with chronic conditions, and anyone planning travel or gatherings in the coming weeks.

The child's death occurred during the week ending Oct. 10 and was associated with an influenza A(H1N1) virus, CDC said. The agency did not release the child's age, location, or vaccination status. Because investigations take time, CDC noted that pediatric deaths are often reported weeks after they occur.

Hospitals reporting to CDC's National Healthcare Safety Network logged 6,100 lab-confirmed flu admissions in Week 42, a rate of 1.8 per 100,000 people. That was up from 4,811 admissions the week before. In FluSurv-NET, a network that tracks hospitalizations in selected counties, the estimated Week 42 rate after adjusting for reporting delays was 1.9 to 2.5 per 100,000, the highest for that week since the 2010-11 season.

Nature World News previously reported that an early H1N1 wave pushed the mid-October hospitalization rate to its highest Week 41 level in 15 years, with no pediatric deaths reported at that time. The new report confirms the early climb is continuing and adds the first forecast-based look ahead.

Reading the FluSight Forecast

FluSight is CDC's flu forecasting program. It combines projections from multiple modeling teams into an ensemble forecast of hospital admissions and emergency department visits several weeks out. The output is a range of likely outcomes, not a single prediction.

That wide range — from 4,800 to 23,200 admissions — reflects real uncertainty about how fast H1N1 will spread. The low end would be roughly where admissions stand now. The high end would be nearly four times the current weekly count. For emergency departments, CDC forecasts that flu will account for 1% to 4.4% of visits, up from 1.2% in Week 42.

CDC also cautioned against reading too much into the early start. The agency wrote that "an earlier increase in activity does not necessarily lead to a higher seasonal peak or greater overall severity." In other words, an early season is not automatically a worse one.

Other indicators remain modest. Outpatient visits for flu-like illness were 2.4%, still below the national baseline of 2.9%. CDC estimates that the season has caused at least 1 million illnesses, 16,000 hospitalizations and 900 deaths so far.

West Coast Leads as H1N1 Dominates

The burden is not spread evenly. Regional hospital admission rates in Week 42 ranged from 0.7 per 100,000 in HHS Region 7, which includes Iowa, Kansas, Missouri and Nebraska, to 2.5 per 100,000 in Region 9, which includes California, Arizona, Nevada and Hawaii. Region 10, covering Washington, Oregon, Idaho and Alaska, was the only region above its baseline for flu-like illness.

That means residents of Los Angeles, San Diego, San Jose, Phoenix, Las Vegas, Seattle and Portland are living in the areas with the most activity right now. CDC data suggest other regions are trending upward but remain earlier in their curves.

The virus mix is unusually uniform. Of influenza A viruses subtyped by public health labs in Week 42, 98.9% were H1N1 and just 1.1% were H3N2. Among age groups, adults 65 and older had the highest cumulative hospitalization rate in FluSurv-NET, at 13.3 per 100,000, followed by adults ages 50 to 64.

Measles Adds a Second Front to an Early Respiratory Season

Flu is not the only respiratory threat families are tracking. CDC had confirmed 4,852 measles cases nationwide in 2026 as of Oct. 29, more than double the total for all of 2025. CDC reports that 96% of this year's cases occurred in people who were unvaccinated or whose status was unknown.

On Nov. 2, New York health officials announced the state's first measles-associated death in about 30 years, a child in Lewis County, according to the Associated Press. "We are deeply saddened by the death of a child in Lewis County associated with the ongoing measles outbreak," state and county health officials said in a joint statement reported by HealthDay.

The two diseases behave differently. Measles spreads through outbreaks in communities with low vaccination coverage, while seasonal flu circulates each winter widely. Both are largely preventable with vaccines, and both hit young children hard.

Shots, Antivirals and Holiday Planning

CDC says people recommended for flu vaccination who have not yet been vaccinated this season should get vaccinated now. The agency's vaccine guidance calls vaccination ideally by the end of October, but vaccination should continue throughout the season while viruses circulate. Protection takes about two weeks to build, so a shot this week would be in place before Thanksgiving travel on Nov. 26.

Children ages 6 months through 8 years who have never been vaccinated need two doses at least four weeks apart. Parents of those children should not wait. Adults 65 and older have preferred higher-dose or adjuvanted options and should ask their pharmacist or doctor which is available.

Antiviral treatment works best when started early. CDC advises that people at higher risk who develop flu symptoms contact a health care provider promptly instead of waiting to see if they improve. Warning signs that need urgent care include trouble breathing, chest pain, persistent high fever, confusion, or a child who is unusually drowsy or not drinking fluids.

Staying home when sick, covering coughs, and washing hands remain practical steps. Panic buying of medicines or avoiding all public places is not called for based on current data.

CDC's Week 43 FluView, covering the week ending Oct. 31, is the next checkpoint. It will show whether hospital admissions are tracking toward the low or high end of the FluSight range. Nature World News will continue to monitor the forecasts as the season develops.

The bottom line is that flu is arriving early, hospitalizations are rising fastest on the West Coast, and CDC expects further increases through mid-November. The most useful step for households that have not yet been vaccinated is to get a flu shot now, with the peak and severity of the season still uncertain.

What Readers Want to Know

What did CDC's latest flu report show? Week 42 data showed 6,100 flu hospital admissions, the first pediatric flu death of the 2026-27 season, and the highest Week 42 hospitalization rate in FluSurv-NET since 2010-11.

What is a FluSight forecast? It is CDC's ensemble forecast that combines several modeling teams' projections. For the week ending Nov. 14, it projects 4,800 to 23,200 flu hospital admissions nationally.

Which areas are seeing the most flu? HHS Region 9, which includes California, Arizona, Nevada, and Hawaii, had the highest admission rate. Region 10 in the Pacific Northwest was the only region above its baseline for flu-like illness.

Does an early start mean a worse season? Not necessarily. CDC says an earlier increase does not necessarily lead to a higher peak or greater overall severity.

Is it too late to get a flu shot? No. CDC says vaccination should continue throughout the season, and people who have not been vaccinated should get vaccinated now.

Who faces the greatest risk? Adults 65 and older have the highest hospitalization rates. Young children, pregnant people, and those with chronic health conditions also face higher risk of complications.

When is the next update? CDC's Week 43 FluView, covering the week ending Oct. 31, is the next scheduled weekly report.