Vaccine

A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism, and is often made from weakened or killed forms of the microbe. The agent stimulates the body's immune system to recognize the agent as foreign, destroy it, and "remember" it, so that the immune system can more easily recognize and destroy any of these microorganisms that it later encounters.

Aluminum in Vaccines: Mechanisms, Myths, and Safety Data

This article explains how aluminum adjuvants work in vaccines, their proven safety record, and addresses common myths and scientific findings. It also highlights new developments in vaccine adjuvant technology and the ongoing need for rigorous monitoring.

What is a Vaccine Breakthrough?

The Essential Program on Immunization is 50: Milestones, achievements, and future directions

Vaccine History

What are Nanoparticle-Based Vaccines?

How Veterinary Vaccines Affect Human Health

Hib Immunization

What are the Main Causes of Vaccine Hesitancy?

Plant-Derived Vaccines

What is an RNA Vaccine?

How are Vaccines Stored?

Investigating the Importance of Investing in Vaccine Manufacturing

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What is the Importance of Vaccination Coverage?

Immunization strategies: What lessons can we learn from successful campaigns?

What is Immunobridging?

What the Newest mRNA Vaccines Could Do Beyond COVID

Vaccine Excipients

Vaccine Delivery

What is a Subunit Vaccine?

Role of Computer Modeling in Vaccine Development

What is a VLP Vaccine?

What is a Live-Attenuated Vaccine?

The Big Catch-Up: How the COVID-19 pandemic impacted vaccination coverage

Transforming Vaccine Design: The Promise of Systems Biology

What are the Different Types of Vaccines?

A New Breed of Vaccine: Exploring Doggybone ™ DNA Technology

Insight into Personalized Vaccines

What are Adenovirus-Based Vaccines?

History of Vaccination

Vaccine Schedule

Could there be a Salmonella Vaccine?

What is a Non-Replicating Vaccine?

Vaccination in Humanitarian Settings

Vaccine Immunity

What is a Toxoid Vaccine?

The Future of Vaccines

Vaccine Effectiveness

What are Vaccines?

Vaccine Production

What is a DNA Vaccine?

What is an Inactivated Vaccine?

Latest Vaccine News and Research

Scripps Research scientists receive NIH grant to unlock long-term HIV protection

Nearly 40 years after HIV was first identified, the virus continues its devastating march across the globe. Today, 38 million people live with HIV, and each year brings 1.5 million new infections and 650,000 more deaths-while nearly 10 million people still lack access to life-saving medicines.

31 Oct 2025

Proimmune Ltd introduces Prove® SL Self-Loading MHC Class I Monomers to improve T cell research flexibility

ProImmune Ltd, a global leader in life science reagents and services, today announced the launch of its new ProVE® SL Self-Loading MHC Class I Monomers.

31 Oct 2025

Global study suggests potential for universal vaccine against Haemophilus influenzae

A vaccine that tackles the bacteria that cause up to 200 million childhood infections every year could be possible, experts say.

31 Oct 2025

At the hollow in Florida, the ‘medical freedom’ movement finds its base camp

MAGA and MAHA are happily married in Florida, and nowhere more at home than in Sarasota County, where on a humid October night a crowd of several hundred gathered to honor state Surgeon General Joseph Ladapo, his wife, and an unlicensed Canadian radiologist who treats cancer with horse paste.

31 Oct 2025

COVID-19 in pregnancy may raise autism and neurodevelopmental disorder risk

Children born to mothers who contracted COVID-19 during pregnancy face a 29% higher likelihood of developmental disorders by age three, including speech, motor, and autism-spectrum delays. The risk was greatest for male offspring and infections occurring in the third trimester.

30 Oct 2025

Global Virus Network announces the addition of three new Centers of Excellence

The Global Virus Network (GVN), a coalition of leading medical virologists representing 80+ Centers of Excellence and Affiliates in 40+ countries, today announced the addition of three new Centers of Excellence: the USF Health Institute for Translational Virology and Innovation at the University of South Florida (USF) in Tampa, Florida, USA, the Department of Microbiology, Immunology and Parasitology at the Federal University of São Paulo (UNIFESP) in Brazil, and the Pathogen Research Centre (PaRC) at Western University in Canada.

30 Oct 2025

AI indelibly transforms solid tumor drug development

Artificial intelligence (AI) is fundamentally reshaping the landscape of solid tumor (ST) drug development.

29 Oct 2025

Understanding age-related changes in T cells and vaccine response

As flu season approaches and public health officials roll out their annual push for vaccination, Allen Institute scientists are learning why vaccines can trigger a weaker response in older adults, around age 65, and what can be done to improve them.

29 Oct 2025

Broad-spectrum antivenom could revolutionize treatment of venomous snakebites in Africa

DTU researchers are behind a potentially groundbreaking antivenom that could revolutionize the treatment of venomous snakebites in Africa.

29 Oct 2025

Purdue researchers develop 30-second vaccine quality tool

The outbreak of the COVID-19 pandemic demonstrated the need to rapidly develop, produce and distribute large quantities of new vaccines. A team of researchers at Purdue University and Merck & Co. Inc., known as Merck Sharp & Dohme Corp. outside of the U.S. and Canada, has now introduced a new analytical tool that could help pharmaceutical companies boost vaccine production with rapid monitoring and analysis.

29 Oct 2025

COVID-19 pandemic linked to diminishing public trust in childhood vaccines

An international study led by the Azrieli Faculty of Medicine in the Galilee at Bar-Ilan University reveals that the COVID-19 pandemic has contributed to a diminishing public trust in childhood vaccines, resulting in declining vaccination rates and a resurgence of preventable, life-threatening diseases such as measles.

28 Oct 2025

Updated COVID-19 vaccines continue to offer strong protection, research shows

Updated COVID-19 vaccines are still providing effective protection against infection, emergency department visits, hospitalization and death, according to new research published today in JAMA Internal Medicine.

27 Oct 2025

Senegal initiates comprehensive response to Rift Valley fever outbreak

Senegal has launched a nationwide, multisectoral response to tackle a growing outbreak of Rift Valley fever (RVF), warning affected communities against risky self-medication.

27 Oct 2025

Doctors muffled as Florida moves to end decades of childhood vaccination mandates

Florida plans to end nearly a half-century of required childhood immunizations against diseases that have killed and maimed millions of children. Many critics of the decision, including doctors, are afraid to speak up against it.

27 Oct 2025

Most Americans risk Lyme disease in their own backyards by skipping simple tick prevention

A large U.S. survey found that most adults and children frequently engage in outdoor activities that expose them to ticks, yet only a minority consistently use protective measures. Despite widespread awareness of Lyme disease, prevention behaviors remain inconsistent, especially during routine yard time.

26 Oct 2025

Unveiling the dual role of HIV integrase in viral replication

The rate of HIV infection continues to climb globally. Around 40 million people live with HIV-1, the most common HIV strain.

24 Oct 2025

A parent's guide to manage pediatric respiratory illnesses during the virus season

As we head deeper into fall and toward the holiday season, your little one may start to exhibit symptoms like a runny nose, cough, or fever.

24 Oct 2025

How COVID mRNA vaccines may make cancer treatments more effective

Researchers found that COVID-19 mRNA vaccines, when given within 100 days of starting immune checkpoint inhibitors, were linked to significantly longer survival in lung and melanoma cancer patients. The vaccines trigger a powerful type-I interferon response that primes tumors to become more responsive to immunotherapy.

23 Oct 2025

PAHO celebrates over three decades without polio in the Americas

World Polio Day (October 24), the Pan American Health Organization (PAHO) celebrates over three decades without wild poliovirus cases in the Americas.

23 Oct 2025

Study shows mRNA-based COVID vaccines enhance effectiveness of immune checkpoint therapy

Patients with cancer who received mRNA-based COVID vaccines within 100 days of starting immune checkpoint therapy were twice as likely to be alive three years after beginning treatment, according to a new study led by researchers at The University of Texas MD Anderson Cancer Center.

22 Oct 2025