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Jentavery / Flickr

Officials in Indonesia might be underestimating the true extent of a severe, mosquito-born illness, according to a new study, because many cases go unreported, per the World Health Organization.

Dengue fever, also called breakbone fever, is a virus closely related to and carried by the same mosquitoes as Zika. Many cases are mild, but in some people dengue can cause extreme pain, fever, shock, and hemorrhaging, and the risk of severe consequences increases the more times someone is infected.

Why it matters: In some countries dengue is a leading cause of death in children, according to WHO.

What they did: The researchers recruited 3,210 children aged 1-20 from neighborhoods across Indonesia. They then tested the participants' blood for dengue antibodies. Since antibodies stay in the body for years after an infection, they provide a glimpse into a person's disease history.

What they found: 69% of Indonesian children had dengue antibodies, and that number rose to 80% in children over 10. The numbers are high enough that the authors suggest that some cases of symptomatic dengue might be going unreported.

This doesn't mean that 80% of Indonesian children get sick from dengue. Many of them may not have even known they were infected. However, these people could still be at risk of more severe symptoms, were they to be infected again. Additionally, people without symptoms can still transmit dengue to mosquitoes, and from there to other people.

Go deeper: Dengue is one of the fastest spreading diseases in the world, and the Centers for Disease Control and Prevention in the U.S. estimates that over 30% of the global population is at risk of dengue. Modern occurrences in the U.S. are fairly rare and with a few exceptions only involve a handful of cases, but mosquitoes capable of spreading dengue have established themselves in many parts of the country where they are closely monitored for the disease.

Go deeper

AP: Justice Dept. rescinds "zero tolerance" policy

A young girl waves to onlookers through the fence at the US-Mexico border wall at Friendship Park in San Ysidro, California in Nov. 2018. Photo: Sandy Huffaker/AFP via Getty Images

President Biden's acting Attorney General Monty Wilkinson issued a memo on Tuesday to revoke the Trump administration's "zero tolerance" immigration policy, which separated thousands of migrant children from their families at the U.S.-Mexico border, AP first reported.

Driving the news: A recent report by Justice Department Inspector General Michael Horowitz emphasized the internal chaos at the agency over the implementation of the policy, which resulted in 545 parents separated from their children as of October 2020.

Biden picks up his pen to change the tone on racial equity

Vice President Harris looks on as President Biden signs executives orders related to his racial equity agenda. Photo: Doug Mills-Pool/Getty Images

President Biden is making a down payment on racial equity in a series of executive orders dealing with everything from private prisons to housing discrimination, treatment of Asian Americans and relations with indigenous tribes.

The big picture: Police reform and voting rights legislation will take time to pass in Congress. But with the stroke of his pen, one week into the job Biden is taking steps within his power as he seeks to change the tone on racial justice from former President Trump.

Most Senate Republicans join Rand Paul effort to dismiss Trump's 2nd impeachment trial

Photo: Joshua Roberts-Pool/Getty Images

Forty-five Senate Republicans, including Minority Leader Mitch McConnell, supported an effort to dismiss former President Trump's second impeachment trial.

Why it matters: The vote serves as a precursor to how senators will approach next month's impeachment trial, making it highly unlikely the Senate will vote to convict. The House impeached Trump for a second time for "incitement of insurrection" following events from Jan 6. when a pro-Trump mob stormed the Capitol.