With new cases of Covid-19 surging in most of the US — driven by unvaccinated Americans and fueled by the highly contagious Delta variant — hospitals are bracing for another round of devastation.

Maskless supporters packed a Phoenix theater for a chance to see former President Donald Trump as Covid-19 cases in the area have more than doubled due to the contagious Delta variant. CNN's Kyung Lah reports.

CNN's Randi Kaye visits a hospital in Florida that is struggling to keep up with patients being admitted with coronavirus.

CNN's Amara Walker discusses the debate states and school districts are having over requiring students to wear masks to return to in-person learning and the difficult decisions parents are having to make.

CNN's Randi Kaye spoke to Nurse Tammy Daniel in a Jacksonville hospital about Covid-19 patients begging for vaccines.

Mark Valentine, brother of conservative radio host Phil Valentine, speaks with CNN's Alisyn Camerota about Phil's change of heart regarding Covid-19 vaccination after a battle with the virus.

The World Health Organization's Africa director Dr. Matshidiso Moeti and epidemiologist Jeremy Farrar discuss vaccine inequity and the latest Covid challenges.

Dr. Michael Bolding made an emotional plea for people in Arkansas to get the Covid-19 vaccine. He speaks with CNN's Pamela Brown about what it has been like treating unvaccinated patients as cases surge.

Dr. Anthony Fauci spoke about the possibility of future NIH collaboration with labs in China - like the Wuhan labs - after officials overseeing an intelligence review into the origins of the coronavirus now believe the lab leak theory is at least a credible explanation for Covid-19's origins.

The US is now averaging more than 43,000 cases of Covid-19 a day as the Delta variant fuels a 65% jump in cases. CNN's Polo Sandoval reports.

A COVID-19 outbreak forced 200 kids to return home early from an Iowa summer camp

Former NFL player Orlando Scandrick, who says he is vaccinated and pro-vaccine, criticized a memo released by the league that says if a game cannot be rescheduled and is canceled due to a Covid-19 outbreak among unvaccinated players, that team will have to forfeit and will be credited with a loss.

After choosing not to get the Covid-19 vaccine, Ganeene Starling ended up in the ICU with coronavirus and was given a 20% chance of survival by doctors. Starling speaks with CNN's Randi Kaye about her experience.

A handful of states have been driving the bulk of the nationwide surge of Covid-19 cases and many of those cases are unvaccinated people. CNN's Miguel Marquez reports.

Adam Rothman talks to CNN's Brianna Keilar about contracting Covid-19 despite being vaccinated.

CNN's Larry Madowo shares his frustration and anger over losing his uncle to Covid-19 and says vaccine inequality around the world must end.

CNN's Ed Lavandera visits a Las Vegas barbershop amidst rising cases of Covid-19 in Nevada. After several unvaccinated employees were infected, business owner Robert Taylor set up a vaccine site at his shop.

CNN medical analyst Dr. Leana Wen fact-checks President Joe Biden's answer on coronavirus vaccine efficacy during a CNN town hall with Don Lemon.

An Alabama doctor shared a heartbreaking Facebook post, revealing that some of her unvaccinated Covid-19 patients are begging for the vaccine before being placed on a ventilator.

A Missouri mother is mourning her unvaccinated daughter's death, and pleading for people to think of their loved ones and get vaccinated against Covid-19.

New York City Mayor Bill de Blasio says it's time to do something different to combat the spread of Covid-19 and will require all healthcare workers to show proof of vaccination or get tested weekly as a condition to show up to work.

School board in Kansas City, KAnsas mandates masks for upcoming school year.

CNN's Leyla Santiago reports on a Florida hospital that is facing a record-breaking surge of Covid-19 patients.

A doctor wants children to wear masks at school this fall as a children's hospital already reaches capacity.

CNN's Jeff Zeleny reports from Ohio, where, like the rest of America, there remains a sharp divide over Covid-19 vaccines.

CNN's Anderson Cooper presses US Surgeon General Dr. Vivek Murthy on his risk of transmitting Covid-19 to his child, who is too young to be vaccinated, and what measures he and other parents should take to protect unvaccinated kids.

Dr. Fauci told CNN's Kate Bolduan that there will be a "smoldering of this outbreak" of Covid-19 if more people don't get vaccinated.

The American Academy of Pediatrics released new Covid-19 guidance for schools that supports in-person learning and, among other things, recommends universal masking in school of everyone over the age of 2.

Finding the time to work out can be a challenge, but a busy doctor shows how short bursts of exercise can add up for better health.

Covid-19 cases are rising in all 50 states as experts warn that unvaccinated individuals are accounting for most new cases. CNN's Natasha Chen reports.

Opioid overdose deaths rose 30% last year, making 2020 the year with the highest number of overdose deaths ever recorded in the US, according to the CDC. CNN's Elizabeth Cohen reports on this health crisis that continued to plague the US amid the Covid-19 pandemic.

A sheriff's department is using dogs trained to sniff out Covid infections.

MAINE HEALTH VACCINATION RATES PORTLAND TRAVELERS

Coronavirus cases are on the rise in Florida largely among two groups of people -- the young and the unvaccinated. CNN's Leyla Santiago has the story.

Businesses respond to Sacramento County indoor masking recommendation

Our Lady of Lourdes Regional Medical Center in Lafayette, Louisiana, has the highest number of Covid-19 patients in the state. CNN's Miguel Marquez gets a look inside the hospital.

Dr. Michelle Fiscus, who served as Tennessee's top vaccine official before she was fired, describes receiving a disturbing package shortly before her termination.

Amy Tersteeg talks to CNN's Erin Burnett about her husband's plea to get their children vaccinated before he died of Covid-19.

CNN's John Avlon examines the long history of anti-vaccine rhetoric as coronavirus vaccines continue to be administered across America.

Dr. Michelle Fiscus, the top vaccine official for the state of Tennessee, says she was fired after sharing a decades-old state policy about minors between ages 14 and 17 being able to receive medical care without parental consent, in relation to the Covid-19 vaccine.

Dr. Anthony Fauci says that according to the data the FDA and CDC have, Americans don't need a booster shot for the Covid-19 vaccine, but they are continually getting more data and that guidance could change.

CNN's Polo Sandoval reports on Arkansas's surge of Covid-19 cases as the state's vaccination rate has stalled.

After Pfizer announced that it is seeing waning immunity from its coronavirus vaccine and it will seek emergency use authorization from the FDA in August for a booster dose, the FDA and the CDC released a joint statement saying boosters were not needed yet.

MISSOURI CORONAVIRUS HEALTH PANDEMIC INDEPENDENCE

CNN's Miguel Marquez meets with recovering Covid-19 patients Louie Michael and Pattie Bunch, who talk about not getting vaccinated and their experience in fighting coronavirus.

Massachusetts AG announces $4.3 billion settlement with Sackler family in Purdue Pharma opioid lawsuit.

A new data analysis identifies clusters of unvaccinated people, most of them in the southern United States, that are vulnerable to surges in Covid-19 cases and could become breeding grounds for even more deadly Covid-19 variants. CNN's senior medical correspondent Elizabeth Cohen reports.