Polio News and Research

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Poliomyelitis (polio) is a highly infectious disease caused by a virus that invades the nervous system and can cause severe paralysis. The virus enters the body through the mouth and multiplies in the intestine. Initial symptoms are fever, fatigue, headache, vomiting, stiffness in the neck, and pain in the limbs. One in 200 infections leads to irreversible paralysis (usually in the legs). Among those paralyzed, 5-10% die when their breathing muscles become immobilized. Polio mainly affects children under five years of age. Naturally occurring polio was eliminated in the U.S. in 1979 and in the Western Hemisphere by 1991; however, worldwide efforts are continuing towards eradication of this contagious and devastating disease.

New brain circuit discovery offers hope for panic disorder treatments

Our survival depends on brains that constantly search for danger and, if found, stay alert until it has passed.

21 Sep 2026

A 194-country analysis reveals gaps in how late childhood vaccinations are tracked

A global analysis of WHO/UNICEF data from 194 countries found wide variation in countries’ ability to record delayed childhood vaccinations, with 64% of reporting countries saying they could capture late doses in 2022. Following birth cohorts over time and adding delayed MCV1 doses raised median coverage estimates by 3.6 to 5.1 percentage points across available cohort years, though incomplete and inconsistent reporting limited confidence in some estimates.

21 Sep 2026

Mosquito excrement offers new way to detect circulating viruses

When public health researchers want to know whether diseases such as COVID-19 or polio are circulating in a community, they can look for genetic evidence in wastewater.

18 Sep 2026

Salk scientists demonstrate B cells directly enhance killer T cell function

Cancer is the second leading cause of death in the United States, according to a 2026 Cancer Research Institute report. Cancer biologists are keenly aware of this statistic, as it drives them to innovations that revolutionize cancer care-innovations like immunotherapy.

17 Sep 2026

Chronic interferon exposure drives immunosuppression in tumors

Cancer biology and, in turn, cancer treatment have come a long way in the last few decades. Most people recognize this progress in breakthroughs like immunotherapy-a treatment strategy first deployed in 2011 that leverages the body's own immune cells to fight cancer and revolutionized the treatment landscape.

10 Sep 2026

Mitochondrial stress triggers long-term protection against heart damage

Mitochondria are popularly known as the "powerhouse of the cell," but these cellular structures do so much more-including acting as signaling hubs.

4 Sep 2026

Independent review reinforces value of vaccines across all ages

The Gerontological Society of America (GSA) supports the 2026-27 respiratory season vaccine evidence review released on September 2, 2026, by the Vaccine Integrity Project (VIP) in collaboration with the American Medical Association.

4 Sep 2026

Maternal illness may reshape fetal brain development through epigenetics

Neurodevelopmental conditions, which include autism spectrum disorders, ADHD (attention-deficit/hyperactivity disorder), and more, impact around ten percent of the American population.

2 Sep 2026

Salk researchers isolate specific neurons controlling complex social behaviors

Our brains constantly integrate information about both our internal state and our surroundings to determine how we behave.

27 Aug 2026

Salk scientists use DNA origami to track molecular movements

Scientists often describe life as a series of chemical reactions. Pallav Kosuri, PhD, describes life as movement. Chemical reactions are how you drive the movement of atoms, proteins, cells, and bodies-without movement, there is no life.

14 Aug 2026

Targeting acid ceramidase could improve healthy aging and longevity

Our population is aging. The United Nations reports that by 2050, the number of people over the age of 85 on our planet is set to triple.

23 Jul 2026

Salk neuroscientists identify traveling brain waves as a computational engine

Your brain has something surprising in common with the ocean: waves! Electrical activity washes over the brain's surface, creating what are called traveling brain waves or neural traveling waves.

21 Jul 2026

Patient-derived organoids uncover new targets for chronic pancreatitis treatment

Around three million people worldwide struggle with chronic pancreatitis, a condition wherein the pancreas becomes inflamed, scarred, and painful.

14 Jul 2026

Lung tumors hijack nervous system to drive cancer-related cachexia

According to the Cleveland Clinic, a quarter of cancer deaths can be attributed to one source: cachexia. Cachexia is a syndrome that accompanies underlying chronic illness and causes unwanted muscle and fat loss, reducing quality of life and sometimes even limiting treatment options.

2 Jul 2026

Iron overload gradually increases neurons' vulnerability to neurodegeneration

Neurodegenerative diseases affect tens of millions of people worldwide. Among these, Alzheimer's and Parkinson's diseases are the most common; in the United States alone, the Alzheimer's Disease Association and Parkinson's Foundation report roughly 7 million people with Alzheimer's and another million with Parkinson's.

25 Jun 2026

Modified injectable vaccine shows promise for complete polio eradication

In the United States, children routinely receive an injectable form of the polio vaccine. This vaccine is very effective at preventing illness, but it doesn't block transmission of the polio virus as well as the oral polio vaccine does.

3 Jun 2026

New study tests vitamin D analog against pancreatic cancer

A small clinical trial led by Dana-Farber Cancer Institute researchers put a Salk Institute idea to the test in patients: that activating the vitamin D receptor can help reshape the protective environment surrounding pancreatic tumors in ways that could make the notoriously difficult-to-treat cancer more vulnerable to therapeutic treatments.

26 May 2026

WHO reports measurable health gains but warns of unmet goals

The World Health Organization (WHO) today released its Results Report, highlighting measurable improvements in people's health worldwide in 2025, despite funding cuts affecting both the organization and the broader global health sector.

24 Apr 2026

The Big Catch-Up reaches millions of children with life-saving vaccines

The Big Catch-Up (BCU), a historic multi-year, multi-country effort to address vaccination declines driven largely by the COVID-19 pandemic, has reached an estimated 18.3 million children aged 1 to 5 across 36 countries with more than 100 million doses of life-saving vaccines, helping to narrow critical immunity gaps, announced Gavi, the Vaccine Alliance (Gavi), WHO, and UNICEF at the start of World Immunization Week.

24 Apr 2026

Innovative light probes allow real-time visualization of cellular processes

Fluorescent proteins have revolutionized science, enabling researchers to tag and visualize individual molecules in living cells, tissues, and animals.

23 Apr 2026