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US study shows updated COVID vaccines cut hospitalization odds by 55%

The 2025-2026 COVID-19 vaccines were associated with 50% estimated effectiveness against COVID-19-associated emergency department and urgent care encounters among immunocompetent US adults. They were also linked to an estimated 55% effectiveness against COVID-19-associated hospitalization, providing added protection beyond existing immunity from prior infection or vaccination.

24 Jun 2026

FairJourney Bio and AbTherx partner to offer fully integrated antibody discovery

FairJourney Bio (“FJBio”), a global antibody discovery expert, has entered a partnership with AbTherx, Inc. to bring transgenic mouse-based antibody discovery in-house. The agreement gives the Company access to AbTherx’s Atlas™ Full Human Diversity (FHD) and Common Light Chain (cLC) mouse technologies, completing a discovery route that partners can now run end to end entirely within FJBio’s integrated workflow.

From FairJourney Biologics S.A. 24 Jun 2026

Targeted vaccination strategies strengthen global biosecurity and biosafety

Biosafety prevents biohazard risks to humans and the environment, biosecurity protects biological assets from misuse, and One Health is an interdisciplinary framework uniting human, animal, and environmental health—all core to global health protection.

17 Jun 2026

Maternal RSV vaccine shows 68% protection against infant RSV hospitalization

In a test-negative case-control study of 274 hospitalized infants aged 90 days or younger, maternal RSVpreF vaccination was associated with 67.6% effectiveness against RSV-associated acute respiratory illness hospitalization. Protection was similar against RSV-linked lower respiratory tract disease, with the highest point estimate in the first month of life, although confidence intervals were wide.

16 Jun 2026

Leading AI models ace many vaccine questions but falter on clinical rules

A multilingual benchmark of 1,886 vaccine-related questions found that large language models answered most items accurately across English, Spanish, and Chinese. However, performance varied by vaccine type, language, and prompting method, with persistent errors in dosing, contraindications, age eligibility, and other clinically sensitive guidance.

11 Jun 2026

Study links menstrual cycle timing to COVID vaccine side effects

A study of 1,474 Clue app users found that women vaccinated against COVID-19 during the follicular phase had higher odds of self-reported side effects than those vaccinated during the luteal phase.

8 Jun 2026

Study reveals how germinal centers consistently produce antibodies

A new study tracking thousands of B cells across more than 100 germinal centers in mice reveals how the system consistently produces highly effective antibodies.

7 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

Pediatric experts reveal the 10 research areas set to shape child health

Pediatric research leaders identified 10 high-promise areas likely to shape child health over the next 5 to 10 years, including genomics, mental health, vaccines, artificial intelligence, perinatal medicine, precision therapeutics, health equity, nutrition, environmental health, and cancer treatment. The paper argues that these opportunities will only translate into better outcomes if pediatric research receives sustained funding, public trust, workforce support, advocacy, and equitable implementation.

1 Jun 2026

Pediatric influenza vaccination effectively protects young children

Pediatric flu vaccines significantly reduce the number of childhood cases of influenza, new research from Harvard Medical School confirms.

1 Jun 2026

WHO prioritizes candidate vaccines and therapeutics for Bundibugyo virus

In response to the current outbreak of Ebola disease caused by Bundibugyo virus occurring in the Democratic Republic of the Congo, with cases also reported in Uganda, WHO convened several of its expert and advisory groups.

29 May 2026

Scientists urge advocacy to protect vital global vaccine research

Scientists and physicians should advocate to protect the vaccine research infrastructure that has saved an estimated 154 million lives over the past 50 years, according to a new commentary by researchers at Weill Cornell Medicine and the University of Washington.

22 May 2026

PAHO and The Carter Center join hands on the elimination of onchocerciasis across the Americas

The Pan American Health Organization (PAHO) and The Carter Center signed a Technical Cooperation Agreement today to strengthen collaboration on the elimination of onchocerciasis — also known as river blindness — and other communicable diseases in the Americas.

21 May 2026

Adjuvanted and high-dose flu vaccines protect older adults equally well

In a large study of 429,595 adults aged 65 years or older, adjuvanted and high-dose influenza vaccines showed no significant difference in protection against PCR-confirmed influenza. The findings support current recommendations that both enhanced vaccines are reasonable options for older adults, while second-season results may further refine the evidence.

20 May 2026

A century of safety: Aluminium vaccine adjuvants do not raise serious long-term health risks

A BMJ systematic review of 59 human studies found no evidence supporting causal links between aluminum-adjuvanted vaccines and serious or long-term outcomes such as autism spectrum disorder, asthma, autoimmune conditions, or other chronic illnesses. The most consistent adverse events were uncommon, local, self-limited persistent nodules or granulomas, likely reflecting delayed-type hypersensitivity.

11 May 2026

U.S. fails key measles elimination indicators amid rising outbreaks

After public health experts declared measles eliminated in the U.S. in 2000, the U.S. Center for Disease Control and Prevention (CDC) established seven indicators of measles elimination status to ensure that the country remained on track.

30 Apr 2026

HPV infections continue after age 27, so who is still at risk?

HPV infections in women aged 27+ highlight the need for updated vaccination policies, emphasizing ongoing risk and the importance of preventive healthcare.

30 Apr 2026

Maternal antibodies provide lifelong protection against adult gum disease

Mothers provide a hidden immune legacy that protects their children's teeth long after weaning is over. A new study reveals how maternal antibodies act as early life architects, programming the mouth to resist aggressive bacteria and prevent the bone loss associated with adult gum disease.

29 Apr 2026

Delaying hepatitis B birth vaccines increases infant infection risks

Delaying hepatitis B vaccination after birth increases infections among newborns and decreases their survival rates and quality of life, according to a new Cornell University study.

27 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