WASHINGTON – Flu cases are climbing sharply across the D.C. region, with new CDC data showing at least 11 million cases nationwide so far. Health officials say a new variant now accounts for roughly 90% of recent infections.

FOX 5’s Stephanie Ramirez says local health departments are urging residents not to wait if they start feeling sick.

READ MORE: Maryland health officials warn of flu surge as hospitalizations rise statewide

The dominant strain this season is H3N2 subclade K, which has been circulating since September. So far, the flu season has led to an estimated 120,000 hospitalizations and 5,000 deaths, with older adults hit especially hard.

Maryland is currently reporting high flu activity, according to state health department data.

READ MORE: Flu cases surging in northern Virginia, health officials say

In Arlington, emergency department–diagnosed flu visits jumped from 19 on Dec. 6 to 120 on Dec. 27 — an over five times increase, according to the Virginia Department of Health.

Fairfax County, a much larger jurisdiction, saw flu-related ER visits rise from 121 on Dec. 6 to 788 by Dec. 27, an over six-and-a-half-time increase.

Numerous roads in D.C. will be closed to traffic Monday evening for a fireworks show celebrating America’s 25th birthday.

Projectors have lit up all four sides of the Washington Monument nightly since 7 p.m. Wednesday for the “Illumination of America: Washington Monument Lighting.” The fireworks that lit up the National Mall on New Year’s Eve are making a return Monday night, which is the last night of the display.

The grand finale of the display comes with some parking restrictions and street closures.

Street and parking restrictions for Freedom 250 fireworks

D.C. police said Constitution Avenue from 14th Street to 17th Street NW will be an Emergency No Parking zone from roughly 6:30 p.m. to 9 p.m.

The following streets will be closed to traffic from approximately 7:30 p.m. to 8:30 p.m.:

• Westbound 395 – no traffic toward Maine Avenue/Independence Avenue, SW
• Independence Avenue from 15th Street to 23rd Street, SW
• Constitution Avenue from 7th Street to 12th Street, NW (westbound traffic will be restricted)
• Constitution Avenue from 12th Street to 23rd Street, NW
• Virginia Avenue from 20th Street to 18th Street, NW
• 19th Street from E Street to Constitution Avenue, NW
• 17th Street from Independence Avenue, SW to New York Avenue, NW
• 15th Street from Independence Avenue, SW to Pennsylvania Avenue, NW
• 14th Street from Independence Avenue, SW to Pennsylvania Avenue, NW
• Madison Drive from 7th Street to 14th Street, NW

Police said all street closures and listed times are subject to change.

WASHINGTON (7News) — On Saturday evening, Metropolitan Police Department’s Seventh District officers responded to a fatal crash on I-295 northbound near Exit 1 for Laboratory Road, Southwest.

The incident occurred around 7:50 p.m. when a pedestrian was struck by a vehicle, police said.

READ MORE | Notorious 295 speed camera rakes in $26M, while DC residents question its legitimacy

Prince George’s County police officers were already on the scene when the MPD officers arrived.

The pedestrian was pronounced dead at the scene.

Authorities have not yet released the victim’s age or gender.

ALSO SEE | Woman killed after pedestrian-vehicle crash in Fairfax County

The driver of the vehicle involved in the collision remained at the scene.

Police urge anyone with information about the incident to call 202-727-9099 or text 50411.