Children infected with coronavirus can carry high levels of the virus even when they have few or no symptoms, according to a Massachusetts General Hospital study published Thursday that bolsters growing evidence that kids catch the virus even though they rarely get very sick from it.
Coming as parents and school officials wrestle with whether it’s safe to reopen schools, the study adds fuel to worries that children may spread the virus — but it does not show that they do.

Jones reviewed protests in more than 140 cities and spoke with U.S. officials within the joint terrorism task force. Most of the violence, Jones said, was committed by “local hooligans, sometimes gangs, sometimes just individuals that are trying to take advantage of an opportunity.”

“There were reports of some antifa at different protests,” he concluded. “But they stood back, did not engage, certainly not in a violent way.”

Officials have arrested more than 14,000 people across 49 cities nationwide since May 27, according to a Washington Post tally of data provided by police departments and included in media reports. Thousands were arrested for low-level offenses, including curfew violations and failure to disperse.

Roughly 80 federal charges, including murder and throwing molotov cocktails at police vehicles, reveal no evidence of an antifa plot. Four people who identify with the far-right extremist “boogaloo” movement are among those facing the most serious federal charges. Asked whether anyone who identifies as antifa had been charged, Department of Justice spokesman Matt Lloyd said via email, “We do not collect statistics based on potential inspiration but on unlawful acts according to statute.”

An intelligence bulletin issued by the FBI, the Department of Homeland Security and the National Counterterrorism Center that was obtained by ABC News warned that “anarchist extremists continue to pose the most significant threat of targeted assaults against police.” The bulletin, which was distributed to police departments nationwide, mentions antifa only in a footnote differentiating those who self-identify with the group from anarchists.

Rather, the bulletin said that “the greatest threat of lethal violence continues to emanate from lone offenders with racially or ethnically motivated violent extremist ideologies and [domestic violent extremists] with personalized ideologies,” specifically pointing to boogaloo-related groups as likely to be “instigating violence” at the protests.