A 2023 law championed by Republicans requires the CDC have a director confirmed by the Senate. For months, though, it's had only acting directors--and the White House won't say when that will change. As the agency rotates through a cast of leaders, it's unclear when--or if--the US Centers for Disease Control and Prevention will get a permanent director under Donald Trump's second term as president. Following Jim O'Neill's departure as acting CDC director last week, National Institutes of Health director Jay Bhattacharya will now lead both agencies temporarily. It's the latest in a series of shakeups at Trump's CDC, which has lost about a quarter of its staff to mass layoffs carried out by Health and Human Services Secretary Robert F. Kennedy, Jr. last year.

Traditional knowledge graphs are constrained by fixed ontologies that organize concepts within rigid hierarchical structures. The root cause lies in treating domains as implicit context rather than as explicit, reasoning-level components. To overcome these limitations, we propose the Domain-Contextualized Concept Graph (CDC), a novel knowledge modeling framework that elevates domains to first-class elements of conceptual representation. CDC adopts a C-D-C triple structure - - where domain specifications serve as dynamic classification dimensions defined on demand. Grounded in a cognitive-linguistic isomorphic mapping principle, CDC operationalizes how humans understand concepts through contextual frames. We formalize more than twenty standardized relation predicates (structural, logical, cross-domain, and temporal) and implement CDC in Prolog for full inference capability. Case studies in education, enterprise knowledge systems, and technical documentation demonstrate that CDC enables context-aware reasoning, cross-domain analogy, and personalized knowledge modeling - capabilities unattainable under traditional ontology-based frameworks.

Another round of terminations, combined with previous layoffs and departures, has reduced the Centers for Disease Control and Prevention workforce by about 3,000 people since January. After the latest round of mass firings at the Centers for Disease Control and Prevention over the weekend, the union that represents agency employees estimates that around 3,000 people this year--about a quarter of the agency's workforce--have departed the agency. That number includes workers affected by layoffs earlier this year, as well those who have accepted the Trump administration's "Fork in the Road" buyout program. The most recent cuts came down amidst the ongoing government shutdown. On October 10, more than 1,300 CDC employees received termination notices.

Things to Do in L.A. Tap to enable a layout that focuses on the article. CDC warns of dramatic rise in dangerous drug-resistant bacteria. The Centers for Disease Control and Prevention warned in a report this week that infections caused by a "super bug" bacteria surged by more than 460% in the United States between 2019 and 2023. This is read by an automated voice. Please report any issues or inconsistencies here .

This week has been an eventful one for America's public health agency. Two former leaders of the US Centers for Disease Control and Prevention explained why they suddenly departed in a Senate hearing. They also described how CDC employees are being instructed to turn their backs on scientific evidence. They painted a picture of a health agency in turmoil--and at risk of harming the people it is meant to serve. And, just hours afterwards, a panel of CDC advisers voted to stop recommending the MMRV vaccine for children under four. This article first appeared in The Checkup, MIT Technology Review's weekly biotech newsletter.

Fox News senior medical analyst Dr. Marc Siegel shares his perspective on whether the mosquito-borne virus in China will spread to the United States and how AI can be detrimental to children's and young adults' mental health on'Fox Report.' The U.S. Centers for Disease Control and Prevention (CDC) is warning that travelers to China face an "enhanced" risk of contracting a virus spread by mosquitoes. There has been an outbreak of chikungunya in Guangdong Province, which can cause fever, joint pain, headache, muscle pain, joint swelling, and rash. Recently, the CDC raised the warning related to chikungunya in China from Level 1: "Practice Usual Precautions" to Level 2: "Practice Enhanced Precautions." The CDC says there are no medicines to treat chikungunya, and recommends preventing it by wearing insect repellent, wearing long sleeves and pants, or staying in places that have air conditioning or screens on the windows and doors.

Fox News senior medical analyst Dr. Marc Siegel shares his perspective on whether the mosquito-borne virus in China will spread to the United States and how AI can be detrimental to children's and young adults' mental health on'Fox Report.' The first case of a travel-associated human screwworm infection has been detected in Maryland. Andrew Nixon, spokesperson for the Department of Health and Human Services, confirmed to Fox News Digital that the patient had recently returned from a trip to El Salvador, a country affected by a screwworm outbreak. The Centers for Disease Control and Prevention (CDC) worked in conjunction with the Maryland Department of Health to investigate the case. The CDC confirmed the diagnosis on Aug. 4 after experts reviewed larvae images. "The risk to public health in the United States from this introduction is very low," Nixon said.

Since the Bellman-evaluation operator is also a contraction under standard conditions [3, 8, 31], our overall argument remains otherwise intact.D.2 Proof of Theorem 2.