Coronavirus pandemic: Updates from around the world

The US Centers for Disease Control and Prevention has updated guidance meant for public health officials and mathematical modelers, which now estimates that 40% of people infected with Covid-19 show no symptoms. 

Back in May, the CDC created five "Covid-19 Pandemic Planning Scenarios," using data to provide a range of possible situations for Covid-19 in the US. The updated scenarios are based on new data the agency received through June 29. The agency also underscores these estimates are subject to change as more information becomes available, and exact numbers are uncertain. 

Under the CDC's "current best estimate," 40% of people with Covid-19 are asymptomatic. This number is up from the 35% the agency estimated on May 20. The percent of asymptomatic cases remains uncertain, the CDC emphasized.

The CDC is now including an infection fatality ratio, which takes into account both symptomatic and asymptomatic cases (in the estimates published in May, the agency only included fatality ratio for symptomatic cases). Under the "best estimate" scenario, the infection fatality ratio is 0.65%, meaning that 0.65% of people infected with Covid-19 are thought to die.

More insight: About half of Covid-19 transmissions happen before people get sick; this is up from the 40% estimate in May.

Under the CDC's current "best estimate," the transmissibility of the virus from asymptomatic people -- in comparison to people with no symptoms -- is now 75%, down from 100%. However, the agency said this "remains highly uncertain as asymptomatic cases are difficult to identify and transmission is difficult to observe and quantify."

The agency warns this information is "intended to support public health preparedness and planning."

The state of Vermont has a seven day positivity average of 0.5%, the lowest in the country, Gov. Phil Scott said in a tweet Saturday.

Scott encouraged Vermonters to "remain vigilant" and continue to wear a mask when it's not possible to physically distance. 

Vermont Department of Health has reported a total of 1,283 cases and 56 deaths, according to its website.

Only six new cases were reported Saturday and two people are currently hospitalized, the department said. 

A total of 75,032 people have been tested in the state, according to the department's website.

There are at least 3,210,955 cases of coronavirus in the US; at least 134,349 people have died from the virus, according to Johns Hopkins University's tally of cases in the country.

As of 2 p.m. ET Saturday, 26,382 new cases and 257 new deaths have been reported in the US since midnight.

The totals includes cases from all 50 states, the District of Columbia and other US territories, as well as repatriated cases. 

Bollywood superstar Amitabh Bachchan has been hospitalized after testing positive for coronavirus, according to the actor’s official Twitter account.

A living legend in Hindi-language cinema, Bachchan has made more than 180 films in a career spanning five decades.

Hailed by many as India's greatest living actor, he is revered in his home nation.

Read the tweet:

New Jersey announced 438 new cases of Covid-19 and 49 additional deaths, according to a tweet from New Jersey Gov. Phil Murphy.

The state has a total of 174,959 cases of Covid-19 and 13,578 deaths from the virus, Murphy said in a tweet.

To note: The figures listed were released by the New Jersey Department of Health and may not line up exactly in real time with CNN’s database drawn from Johns Hopkins University and the Covid Tracking Project.

Read the governor's tweet:

The South Carolina Department of Health announced the highest number of reported positive cases of Covid-19 in one day.

On Saturday, the state reported 2,239 cases, breaking the previous high number by 300 cases, according to the state's department of health.

The health department also announced a 22.2% positivity rate, also a new high.

South Carolina reported its first pediatric death associated with Covid-19 today.

Former President Jimmy Carter and former first lady Rosalynn Carter on Saturday urged the American people to "please wear a mask and save lives" as the country continues to battle the deadly coronavirus.

The couple's Atlanta-based charity, the Carter Center, posted a photo on Twitter Saturday of the pair wearing white masks printed with the center's logo. The picture was paired with the straightforward plea.

Some context: Masks have become a political flash point as some Americans argue the requirement infringes upon their civil liberties.

But the US Centers for Disease Control and Prevention urges everyone to wear a "cloth face cover when they have to go out in public," noting that masks are critical "in case the wearer is unknowingly infected but does not have symptoms."

Pennsylvania has reported 813 new Covid-19 cases and 17 additional deaths from the virus, according to a news release from the state’s health department.

The state has a total of 94, 689 cases of Covid-19 and 6,8897 total deaths, the release says.

To note: The figures listed were released by the Pennsylvania Department of Health and may not line up exactly in real time with CNN’s database drawn from Johns Hopkins University and the Covid Tracking Project.

The Florida Department of Health have acknowledged a miscalculation in their daily Covid-19 death increase and issued a correction on Saturday, a Florida Department of Health spokesperson told CNN. 

Florida is now reporting 95 additional deaths reported on Saturday. A state summary released Saturday morning erroneously listed 188 additional deaths, the DOH spokesperson said. 

"The previous report calculated the change in the deaths over the last two days (93 on 7/10 and 95 on 7/11), instead of the change from yesterday to today. It has now been corrected to only reflect the change in deaths from yesterday to today," the spokesperson said in an email.

There have been a total of 4,197 deaths reported, the DOH said. Daily case count data does not appear to be effected by the error.