Jesse Jackson, wife hospitalized with COVID-19
The civil rights pioneer was vaccinated in January.
The United States is facing a COVID-19 surge this summer as the more contagious delta variant spreads.
More than 628,000 Americans have died from COVID-19 while over 4.4 million people have died from the disease worldwide, according to real-time data compiled by the Center for Systems Science and Engineering at Johns Hopkins University.
Just 59.9% of Americans ages 12 and up are fully vaccinated against COVID-19, according to data from the Centers for Disease Control and Prevention.
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Most Florida hospitals expect 'critical staff shortages'
Three out of every four Florida hospitals "expect to face critical staff shortages" in the next week as hospitalizations likely continue to rise, Florida Hospital Association President and CEO Mary Mayhew said in a statement Tuesday.
"Half of our hospitals will no longer accept transfer patients from other facilities," Mayhew added.
Hard-hit Florida currently has 16,521 COVID-19 patients in hospitals and just 14.2% of hospital beds available, according to federal data.
-ABC News' Brian Hartman
Alabama ICUs 99% full
Five states have intensive care units over 90% full: Alabama (99.31%), Florida (91.63%), Georgia (91.03%), Mississippi (91.26%) and Texas (91.38%), according to federal data.
Nationally, about 75% of adult ICU beds are occupied.
Florida has the nation's highest case rate, followed by Louisiana, Mississippi, Arkansas, Alabama, Texas, Hawaii, Missouri, Georgia and Kentucky, according to federal data.
As of Tuesday morning, more than 88,000 Americans were hospitalized with COVID-19, marking the highest number since Feb. 1, according to federal data.
The U.S. is recording about 500 COVID-19 deaths per day, which is nearly a 131% jump in the last month.
-ABC News' Arielle Mitropoulos
Cases among Kentucky kids jump 400% in 1 month
COVID-19 cases among Kentucky children jumped 400% in the last month as a record number of kids have been admitted to hospitals, Gov. Andy Beshear announced Tuesday.
"Kentucky’s case numbers and positivity rate have continued to rise rapidly after record lows for the past year were recorded for both metrics in June," the governor's office said.
Kentucky's positivity rate stands at 12.4%.
As of Sunday, there were only 17 Kentucky counties where at least 50% of residents had at least one vaccine dose, the governor's office said.
Half of eligible Americans in all states have received at least 1 shot
Every state now has at least 50% of the eligible population (12 years and older) with at least one vaccine dose, White House COVID-19 data director Cyrus Shahpar tweeted.
Some states have over 80% of the eligible population with at least one dose, he added.
-ABC News' Alexandra Faul
'What we're dealing with now is completely different,' says pulmonologist who lost 3 patients in week
An Alabama doctor is seeing young, healthy patients die from COVID-19 amid the surge of the delta variant.
Dr. Jenna Carpenter, a pulmonary care physician at Marshall Medical South in Guntersville, Alabama, has lost three patients under the age of 40 in the past week from complications related to COVID-19, she told ABC Huntsville, Alabama, affiliate WAAY.
"The young man I lost this week was perfectly healthy," she said. "He wasn't overweight. He did not have any known medical issues and that was a tragedy."
The worst phone call the physicians have to make is to inform family members that their loved one has taken a turn for the worst, Carpenter added.
"In our heart we know this is going to be the last time these folks talk to their families," she said.
The state currently has more ICU patients than beds, and frontline workers are also getting sick from the highly contagious variant, WAAY reported.
"Last week we were down to 35 or 40 ICU beds. Now we are down at the single digits," Dr. Don Williamson, a former state health officer who is now the president and CEO of the Alabama Hospital Association, told the station. "It doesn’t matter if it is six or two, we could even be negative ICU beds."
-ABC News’ Cherise Rudy