As school districts across the country reopen, some state officials worry about children's vulnerability as the variant highly contagious of the Delta coronavirus targets the unvaccinated. Covid-19 cases increase among children at the start of the school year - many in districts without mask warrants - continue to force quarantines and other disruptions. The latest weekly tally of new pediatric cases - 243,373 - is around 240% increase since July , said Monday the American Academy of Pediatrics. Anyone 12 years of age and over is eligible for a Covid-19 vaccine but vaccination in childrenants 12 to 17 years old is lower than in older groups, according to the US Centers for Disease Control and Prevention. The United States is not alone. Covid-19 infections among children and adolescents in the Americas - including the United States and Canada - have reached more than 1.9 million, said Dr Carissa Etienne, director of the Pan American Organization on Wednesday. of health. 1 in every 500 US residents have died from Covid-19 Read more Over 1.5 million cases of Covid- 19 among children and adolescents have been reported in the Americas all last year. In the United States, some state officials are sounding the alarm: About 60% of epidemics in Georgia are in schools In the last 60 daysbear, about 60% of all Covid-19 in Georgia occurred in K-12 schools - about seven times as many, state epidemiologist Dr Cherie Drenzek said on Tuesday during 'a meeting of the board of directors of the Ministry of Public Health. The most important epidemiological trend we have seen, which was very different from previous waves of this pandemic, is the huge impact we are having seen on school-aged children, ”she said. Should I remove my child from school due to Covid-19 issues? An ex plains expert This impact cuts across all surveillance indicators, including new cases, hospitalizations and deaths, according to Drenzek. Georgia currently records an average of nearly 7,000 new cases every day, about ten times more than 'in July, according to the dataJohns Hopkins University. Georgia ranks last in the United States in immunization rates, with 43% complete vaccines, according to CDC. Ohio governor's appeal to school districts Ohio Gov. Mike DeWine and the Ohio Children 's Hospital Association this week urged principals to demand masks for staff and students. If we want our schools to stay open, the best way to do it is for those 12 and over to get vaccinated, he said in a virtual meeting with the superintendents. But because under 12s are still too young to be vaccinated, we need the students who come to school to wear a mask until we get over that. School is in session, with unvaccinated children carrying the weight of Delta Just over 54% of state public sc school students are subject to a mask requirement. Reasonable people can disagree on a lot of things, but we can all agree that we need to keep our children in class so that they don't fall behind and their parents can go to work and not be late. free time to watch their children at home, DeWine said. As of August 15, there have been 29,823 children - aged 5 to 17 - with confirmed or probable cases of Covid-19 in the state Over the past week, Ohio saw a 44% increase in cases among school-aged children, compared to a 17% jump in the rest of the population. Covid-19 vaccines for young children may be allowed at some pointthis fall, Fauci says The statement says school districts where masks are optional saw a 54% week-over-week increase, up from 34% peak in districts with mask requirements. It's a perfect storm, and it's impacting kids like never before, Nick Lashutka, president and CEO of the Ohio Children 's Hospital Association, said in the statement. . 10 times more cases in Pennsylvania schoolchildren this year Pennsylvania has 10 times more cases of Covid-19 in school-aged children than at the same time this year last - when the state was distance learning, according to Alison Beam, the acting secretary of health. Between September 4 and September 10 of last year, there were 574 cases of Covid-19 in children aged 5 to 18 in Pennsylvania, according to the Department of Health. During the same period in 2021, there were 5,371case in the same age group. Status of a vaccine for children n Vaccines for children ages 5 to 11 could get the green light from the US Food and Drug Administration this fall, Dr. Anthony Fauci said Tuesday. If you look at the studies that we (National Institutes of Health) are doing in collaboration with pharmaceutical companies, there will be enough data to request emergency use authorization from both Pfizer , a little later by Moderna, Fauci told CNN. I think both - with Pfizer first - will most likely be able to have a situation where we can immunize children, he added. If the FDA deems the data sufficient, we could do so by the fall. Covid school quarantines are a new > As 'Schools to reopen, experts say quarantines are still needed to stop the spread of Covid-19 But mask warrants in schools remain controversial. In New York, two public school districts of Long Island are suing the state governor and health commissioner for a statewide school mask mandate imposed before the school year. Johns University data Wednesday Hopkinsshowed that 1 in 500 Americans is died of coronavirus since the country's first reported infection. CNN's Madeline Holcombe, Holly Yan, Christina Maxouris and Jen Christensen contributed to this report.