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
Frontline workers warn of increase in pediatric COVID-19 related hospitalizations
The average number of people being admitted to the hospital each day with COVID-19 in the U.S. has surged by more than 480% since the end of June, marking the highest number of patients seeking care in over six months.
Doctors are warning of the alarming rates of people entering the hospital with life-threatening conditions.
"What was more terrifying this time is that these people are drowning, they're drowning, and it is an awful thing to see,” Dr. Enrique Lopez, surgical tntensivist at Phoebe Health in Georgia said Monday in a new video message.”And you would look up on the monitor and their oxygen saturation would be near perfect and they would just sit there just starving for air just begging to breathe.”
Nationally, more than 83,000 Americans are currently hospitalized with COVID-19 nationwide. Several Southern states are experiencing their worst surge yet, with front line workers raising the alarm about overwhelmed ICUs, and patients waiting in hallways at some hospitals.
"They're just saying over and over again I can't breathe. I can't breathe. I can't breathe, and it was so different than it was last time," said Lopez. "Now, it wants kids, and those ICUs for those pediatric patients are filling up."
Likewise, as cases have increased, so have pediatric hospital admissions, experts say.
"Even though it's uncommon, it can be very severe and even life threatening in some cases," said Dr. Zac Aldewereld, assistant professor of pediatric critical care medicine and pediatric infectious diseases at the University of Pittsburgh. "And yet we have a vaccine to prevent it."
-ABC News' Arielle Mitropoulos