Immunization News and Research

RSS

WHO releases first-ever position paper on immunization products to protect infants against RSV

Today, the World Health Organization (WHO) published its first-ever position paper on immunization products to protect infants against respiratory syncytial virus (RSV) – the leading cause of acute lower respiratory infections in children globally.

30 May 2025

Single measles strain triggers outbreak in Milan despite high vaccination rates

A unique measles B3 lineage drove a sustained local outbreak in Milan and surrounding areas in early 2025, marking a shift from previous D8 importations. This primarily affected unvaccinated adults, raising alarms about potential endemic measles resurgence in northern Italy despite high overall vaccination coverage.

27 May 2025

PAHO highlights surge in yellow fever cases across the Americas in 2025

The Pan American Health Organization (PAHO) has issued a new Rapid Risk Assessment (RRA) on yellow fever in the Americas which shows that the risk to public health remains high due to continued human cases in endemic countries of the Region.

27 May 2025

Prior COVID-19 vaccination provides strong protection against emerging variants

Prior COVID-19 vaccination did not stop the immune system from mounting a protective response to the Delta and Omicron strains, though new mutation-specific antibody production dipped slightly, according to a study led by researchers at the University of Arizona Health Sciences and published in Nature Immunology.

27 May 2025

WHO and African Union renew agreement to strengthen health in Africa

The World Health Organization (WHO) and the African Union (AU) Commission renewed their longstanding strategic partnership today with the signing of an updated Memorandum of Understanding (MoU) on the sidelines of the 78th World Health Assembly in Geneva.

26 May 2025

Chile joins Alliance for Primary Health Care in the Americas to strengthen primary healthcare

The Ministry of Health of Chile joined the Alliance for Primary Health Care in the Americas, a joint initiative led by the Pan American Health Organization (PAHO), the Inter-American Development Bank (IDB) and the International Bank for Reconstruction and Development (World Bank) through the establishment of the Mesa Consultiva of Primary Health Care in Chile.

23 May 2025

FOXP4 gene variants reveal new genetic link to long COVID risk

Researchers have identified genetic variants in the FOXP4 gene that significantly increase the risk of developing long COVID, independently of COVID-19 severity. The study also reveals that ancestry, smoking, and other factors contribute to the complex genetics of long COVID.

23 May 2025

Study highlights economic burden of RSV in European children requiring primary care

Infections from respiratory syncytial virus (RSV) in children requiring primary care led to significant societal economic costs from outpatient treatment and parental work absences in Europe, according to a study just published on Eurosurveillance.

22 May 2025

WHO honors tobacco control champions across the Americas

Researchers, activists, civil society organizations, and journalism organizations from Canada, Ecuador, Mexico, Peru, the United States, and Uruguay, as well as government agencies from Brazil, have been recognized with World Health Organization (WHO) World No Tobacco Day (WNTD) 2025 Awards at the 78th World Health Assembly in Geneva, Switzerland today.

19 May 2025

New WHO report reveals the deeper health impacts caused by COVID-19 pandemic

WHO published its World health statistics report 2025, revealing the deeper health impacts caused by the COVID-19 pandemic on loss of lives, longevity and overall health and well-being.

15 May 2025

WHO Results Report 2024 shows progress on global health goals amid financial uncertainties

The World Health Organization (WHO) Results Report 2024, shows progress on global health goals, even in times of growing financial uncertainties.

12 May 2025

Scientists link specific gene variants to post-vaccine myocarditis and pericarditis

A genome-wide association study in Sweden identified rare genetic variants near the SCAF11 and LRRC4C genes that may be linked to heart inflammation following COVID-19 mRNA vaccination. The findings shed light on potential biological pathways driving vaccine-associated myocarditis and pericarditis, particularly among younger individuals.

11 May 2025

Firefighters and health care workers show elevated PFAS levels in new study

A study including researchers from the University of Arizona Health Sciences and published in the Journal of Exposure Science & Environmental Epidemiology found that firefighters had higher concentrations of certain per- and polyfluoroalkyl substances, or PFAS, and health care workers had moderate elevations of PFAS in their blood with significantly higher odds of two specific PFAS when compared with other essential workers.

8 May 2025

Nirsevimab slashes RSV hospitalizations in infants by 78% in real-world study

A Spanish study found that nirsevimab prophylaxis significantly reduced infant hospitalizations, ICU admissions, and severe symptoms linked to RSV and other respiratory viruses. Hospitalizations for RSV dropped by 78% following nirsevimab rollout in Madrid maternity wards.

8 May 2025

Scientists use AI to build mutation-proof antibodies for SARS-CoV-2

Researchers used AI models to design antibodies that neutralize over 1,300 SARS-CoV-2 strains, including Delta and Omicron. The models demonstrated faster, cheaper, and more adaptable therapeutic development compared to traditional methods.

5 May 2025

The patient expected a free checkup. The bill was $1,430.

Carmen Aiken of Chicago made an appointment for an annual physical exam in July 2023, planning to get checked out and complete some blood work.

30 Apr 2025

Measles makes a deadly comeback in Europe as vaccine gaps widen

In 2024, measles cases in Europe soared to the highest levels in decades, with over 35,000 reported cases, 87% from Romania alone. Most affected were unvaccinated children, revealing critical immunity gaps and suboptimal vaccination coverage across the EU/EEA.

29 Apr 2025

Measles could return to endemic status if US vaccination rates fall further

Declining childhood vaccination rates in the United States could lead to a resurgence of measles and other previously eliminated infectious diseases. Simulation models predict that even current vaccination rates may be insufficient to prevent measles from becoming endemic within 20–25 years.

27 Apr 2025

Children with chronic conditions face higher RSV hospitalization risk

Young children with chronic conditions are more likely to be hospitalized for respiratory syncytial virus (RSV) than healthy children, according to a new study.

25 Apr 2025