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Yellow fever
Yellow fever (also called yellow jack, black vomit, or sometimes American Plague) is an acute viral disease. It is still an important cause of hemorrhagic illness in several African and South American countries. Yellow fever is caused by an arbovirus of the family Flaviviridae, and is one of the smallest RNA viruses isolated. Human infection is begun after deposition of viral particles through the skin in infected arthropod saliva. Mosquitos are the primary vector in transmission of the disease from forest monkeys to humans and in person-to-person transmission. Yellow fever infections are frequently severe. A vaccine for yellow fever was developed which gives a 10-year or more immunity from the disease and effectively protects people traveling to the affected areas.
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Health & Medicine News
September 30, 2025
Sep. 30, 2025 — Scientists have uncovered a dangerous hidden feature in Black Mamba venom that explains why antivenoms sometimes fail. The study revealed that several mamba species launch a dual neurological attack, first causing limp paralysis and then unleashing ...
Sep. 30, 2025 — Scientists have kept a tiny slice of cochlea alive outside the body, directly witnessing how hair cells amplify sound. The finding confirms a universal principle of hearing and could pave the way for long-sought treatments for hearing ...
Sep. 29, 2025 — Morning sickness isn’t just random misery—it’s a biological defense system shaped by evolution to protect the fetus. By linking immune responses to nausea and food aversions, UCLA researchers ...
Sep. 29, 2025 — Scientists discovered that inhibiting the enzyme STK17B forces multiple myeloma cells into iron-driven death and makes therapies more effective. Early mouse studies show strong potential for a new treatment ...
Sep. 29, 2025 — Researchers found that middle-aged adults, especially women, are far more likely to be addicted to ultra-processed foods than older generations. Marketing of diet-focused processed foods in the 1980s may have played a major role. Food addiction was ...
Sep. 29, 2025 — Researchers in Sweden and Finland have created the CORE model, a simple blood test that predicts liver disease risk with striking accuracy. Unlike current methods, it works for the general population and can be used in everyday primary care ...
Sep. 29, 2025 — Researchers have revealed how polymyxins, crucial last-resort antibiotics, break down bacterial armor by forcing cells to overproduce and shed it. Astonishingly, the drugs only kill bacteria when they’re active, leaving dormant cells untouched. ...
Sep. 29, 2025 — Scientists discovered that high-fat junk food disrupts memory circuits in the brain almost immediately. Within just four days, neurons in the hippocampus became overactive, impairing memory. Restoring glucose calmed the neurons, showing that ...
Sep. 28, 2025 — Human fertility hinges on a delicate molecular ballet that begins even before birth. UC Davis researchers have uncovered how special protein networks safeguard chromosomes as eggs and sperm form, ...
Sep. 28, 2025 — Inhaled heparin significantly lowers the risk of death and ventilation in COVID-19 patients while also showing potential against other respiratory infections. With its unique triple-action benefits, it could serve as a powerful and accessible ...
Sep. 28, 2025 — Eating more fruit could help protect lungs from air pollution damage, particularly in women. Researchers point to antioxidants and anti-inflammatory compounds in fruit as possible defenses against harmful airborne ...
Sep. 28, 2025 — A groundbreaking international study has shown that a 2-in-1 budesonide-formoterol inhaler is far more effective than the standard salbutamol inhaler in children with mild asthma, cutting attacks by nearly ...
Latest Headlines
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Sep. 28, 2025 — Living with a sense of purpose may not just enrich life, it could also guard against dementia. A UC Davis study tracking over 13,000 adults for up to 15 years found that people with higher purpose ...
Sep. 28, 2025 — Researchers discovered that autism’s prevalence may be linked to human brain evolution. Specific neurons in the outer brain evolved rapidly, and autism-linked genes changed under natural selection. ...
Sep. 28, 2025 — Beer and wine, staples of human history for millennia, are still yielding new surprises. Recent research highlights how yeast extracts can cloud lagers, gluten can be quickly detected with a simple ...
Sep. 28, 2025 — Researchers in Japan discovered that Parkinson’s patients diagnosed in their 80s are far more likely to show signs of amyloid buildup, a hallmark ...
Sep. 27, 2025 — Daily cocoa extract supplements reduced key inflammation markers in older adults, pointing to a role in protecting the heart. The findings reinforce the value of flavanol-rich, plant-based foods for ...
Sep. 27, 2025 — Ultra-processed foods make up the bulk of U.S. diets, and new research links high intake to inflammation, a predictor of heart disease. People consuming the most UPFs were far more likely to show ...
Sep. 27, 2025 — Researchers are showing how phone sensors can track patterns tied to a wide range of mental health symptoms. Instead of relying only on self-reports, clinicians may soon be able to gather continuous, ...
Sep. 26, 2025 — Scientists have discovered a way to block pain while still allowing the body’s natural healing to take place. Current painkillers like ibuprofen and aspirin often come with harmful side effects ...
Sep. 25, 2025 — Cambridge scientists have created a breakthrough material that can sense tiny chemical changes in the body, such as the increased acidity during an arthritis flare-up, and release drugs exactly when ...
Sep. 25, 2025 — Mangos, often dismissed as too sugary, may hold hidden benefits for those at risk of diabetes. A George Mason University study found that daily mango eaters showed better blood sugar control and less ...