Jiachuan Wu
Jiachuan Wu is a national interactive journalist for NBC News.
Jiachuan Wu is a national interactive journalist for NBC News.
Latest from Jiachuan Wu
Map: Coronavirus cases are falling around the U.S. See where case counts are falling the most.
NBC News is following Covid-19 case numbers in states and territories in the United States. The data will be updated daily.
Map: Track coronavirus deaths around the world
Get the latest data on the human cost of this virus. Updated daily.
Coronavirus map: Confirmed Covid cases, per country
Here's how many coronavirus cases per country have been confirmed. This map is updated daily.
Graphic: Coronavirus deaths in the U.S., per day
More than 600,000 people have died in the U.S. of Covid-19. Track which states are getting hit the hardest and which direction the country's death rate is going. Updated daily.
Coronavirus deaths: U.S. map shows number of fatalities compared to confirmed cases
Track the latest numbers on deaths in U.S. states and territories. Updated daily.
Coronavirus in the U.S.: Map of how many cases have been confirmed across the country, by state
U.S. health officials are monitoring for cases in the United States.
Covid travel tracker: Which countries are allowing visitors from the U.S.?
NBC News is tracking travel restrictions for U.S. citizens in countries around the world.
Graphic: Compare full vaccination rates across the U.S.
One in 4 people in Mississippi are fully vaccinated, while nearly half in Maine are.
Most officers never fire their guns. But some kill multiple people — and are still on the job.
In Seattle, one officer's multiple deadly encounters offer a window into this little understood corner of American policing.
Mask mandates are being lifted across the country. See if there's a mandate in your state.
NBC News is keeping track of statewide mask orders during the pandemic.
500,000 lives lost: Tracing Covid-19 deaths across the country
Each dot on the map represents a person who died from Covid since Feb. 2020 to Sunday.
