New Jersey is now home to more than 400 confirmed cases of coronavirus.

The state reported the big jump in numbers Wednesday afternoon during its daily briefing. And another disturbing fact became clear: Gov. Phil Murphy said the state was experiencing “some amount of community spread,” meaning cases where there was no clear sign of how the person was exposed.

At least five New Jerseyans have died because of the respiratory illness, which has sickened more than 200,000 people across the world.

The trajectory for coronavirus cases in New Jersey closely mirrors what has been seen elsewhere in the U.S. and around the world: a slow buildup followed by dramatic spikes that reflect the virus’ exponential spread. The following chart shows the growth of reported cases over time.

The first positive test was in Bergen, and the county has continued as the epicenter of the outbreak in New Jersey.

Hunterdon County didn’t have its first positive test until March 16, 11 days after the virus was first found here. The spread has been swift in Essex County. The virus was found in eight other counties prior to being seen for the first time there, but is growing fast, far outpacing many other counties.

On a radio show March 15, Murphy said he’d take “more draconian steps” to curb the spread of the virus.

Murphy asked for a statewide curfew the next day, requesting New Jerseyans to not leave their homes between 8 p.m. to 5 a.m. to help stop the spread of the virus. He announced it after a joint call with New York Gov. Andrew Cuomo and Connecticut Gov. Ned Lamont. The governors of the tristate area also jointly announced all movie theaters, gyms, and casinos in all three states must close at 8 p.m. starting March 16 and will remain closed until further instruction. They also said that bars and restaurants will only serve take-out food till further notice.

“We want everybody home — not out,” Murphy said.

Tell us your coronavirus stories, whether it’s a news tip, a topic you want us to cover, or a personal story you want to share.

Disha Raychaudhuri may be reached at disha@njadvancemedia.com. Follow her on Twitter @Disha_RC.

Nick Devlin is a reporter on the data & investigations team. He can be reached at ndevlin@njadvancemedia.com. Follow him on Twitter at @nickdevlin.