• The Centers for Disease Control and Prevention (CDC) stopped tracking reported breakthrough cases that don't result in death or hospitalization in May. But, from January to the end of April 2021, there were 10,262 breakthrough cases across 46 states and territories. By then, 101.4 million people were fully vaccinated, and 0.01% of them had contracted COVID-19 after vaccination.
   
• Through August 2, there were 7,525 breakthrough hospitalizations, or 0.004% of all fully vaccinated Americans. There were 1,503 breakthrough deaths, representing 20% of these severe COVID-19 cases.
   
• The CDC defines breakthrough cases as detecting COVID-19 in someone more than two weeks after completing vaccination, whether it's a Pfizer or Moderna vaccine or the single-shot Johnson and Johnson vaccine.

See the breakthrough infections metrics here. As always, you can also track cases and vaccination rates at the COVID-19 data hub.

Last week, the US Census Bureau released new data about the American population. It's data that not only reveals the county's changing demographics over the past decade but means coming changes for federal representation. Here's the latest:

• The nation's non-Hispanic white population dropped 5.1 million between 2010 and 2020, while the Hispanic population grew by 11.6 million.

• Texas had the largest population increase during that time, growing from 25.1 million to 29.1 million. The Hispanic population increased 21% from 9.5 million to 11.4 million and accounted for half of the state's growth. Texas will gain two seats in reapportionment.
   
• Both Florida's and California's populations increased by 2.7 million and 2.3 million, respectively. Florida's Hispanic population grew 35% from 4.2 million to 5.7 million. Florida gained one seat in reapportionment. 
   
• California remains the most populous state but will lose one congressional seat in 2022. The state's Hispanic population increased 11% from 14 million to 15.6 million, accounting for 69% growth. The non-Hispanic white population decreased by 8%, from 15 million to 13.7 million.

How did other races shift over the decade? Which states also had large population growth? See the numbers at USAFacts.

More Americans are quitting their jobs

The quit rate, which measures the number of jobs quit as a percentage of total employment, reached 2.8% in April 2021. That's the highest since the Bureau of Labor Statistics (BLS) started measuring the rate 20 years ago. Quit rates typically trend down as unemployment rates go up; the lowest recorded quit rate of 1.2% was in August and September 2009. Here are the industries most affected by the great resignation:

• Job sectors with lower average earnings tend to have higher quit rates. The leisure and hospitality sector had May's highest quit rate and lowest earnings: $18.05 per hour. The transportation, trade, and utilities sector had the second-highest quit rate and the second-lowest average wages at $26.21 per hour.
   
• State-level experimental estimates provided by the BLS show Alaska had the highest quit rate in March: 3.6%. Kentucky and Mississippi followed with 3.4%. That same month, New York's was 1.6% (the lowest in the country), followed by New Jersey and Washington, DC at 1.9%.

• The pandemic led to a record high unemployment rate of 14.8% in April 2020. The quit rate dropped to 1.6% then, not quite as low as 2009.

Twitter just got a little more factual 

USAFacts is partnering with FactSparrow to bring government facts to Twitter and combat misinformation. FactSparrow is a tool from Repustar that empowers people to surface relevant facts in social media conversations. Call on the FactSparrow Twitter bot to see supporting evidence behind a claim or learn more about the topic at hand. Read more about FactSparrow here.

One last fact