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.

Vaccine Immunity

What is a VLP Vaccine?

What is a Subunit Vaccine?

Investigating the Importance of Investing in Vaccine Manufacturing

What are Nanoparticle-Based Vaccines?

What is a Non-Replicating Vaccine?

Vaccine Production

What is a Toxoid Vaccine?

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

What is a Vaccine Breakthrough?

Hib Immunization

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What are Adenovirus-Based Vaccines?

A New Breed of Vaccine: Exploring Doggybone ™ DNA Technology

How Veterinary Vaccines Affect Human Health

How are Vaccines Stored?

Vaccine Excipients

What are the Different Types of Vaccines?

Plant-Derived Vaccines

What is Immunobridging?

What is a Live-Attenuated Vaccine?

History of Vaccination

Transforming Vaccine Design: The Promise of Systems Biology

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

Vaccine History

What are the Main Causes of Vaccine Hesitancy?

What are Vaccines?

What is the Importance of Vaccination Coverage?

Vaccine Effectiveness

What is a DNA Vaccine?

Insight into Personalized Vaccines

Role of Computer Modeling in Vaccine Development

What is an RNA Vaccine?

The Future of Vaccines

Vaccine Delivery

What the Newest mRNA Vaccines Could Do Beyond COVID

Could there be a Salmonella Vaccine?

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

What is an Inactivated Vaccine?

Vaccination in Humanitarian Settings

Vaccine Schedule

Latest Vaccine News and Research

Global Virus Network monitors spreading avian influenza in Australian mammals

The Global Virus Network (GVN) is closely monitoring detections of highly pathogenic avian influenza A (H5N1), commonly known as bird flu, in several mammal species in Australia as the virus continues to spread among birds and mammals worldwide.

18 Sep 2026

Chile becomes first South American nation to eliminate dog-transmitted rabies

Chile has become the first country in South America to receive the World Health Organization (WHO) validation for eliminating dog-transmitted rabies as a public health problem.

18 Sep 2026

US health officials knowingly relied on flawed vaccine safety algorithm

US health officials knowingly relied on a compromised algorithm to detect signals of harm from mRNA covid-19 vaccines and silenced efforts to fix it, finds an investigation published by The BMJ today.

17 Sep 2026

Immunotherapy combined with BCG vaccine drastically lowers tuberculosis relapse risk

Tuberculosis (TB) remains one of the world's leading causes of death, and preventing post-treatment relapse continues to be a major worldwide health challenge.

17 Sep 2026

Innate immune system variations determine vaccine side effects

Redness and pain at the injection site, fever, fatigue or headaches: vaccines can cause side effects, but their frequency and severity vary considerably from person to person.

17 Sep 2026

Single-molecule imaging reveals nucleated growth mechanism of viral capsids

Oxford University researchers have captured the step-by-step assembly of individual virus-like particles, revealing how simple molecular interactions can reliably build these complex biological structures. The results have been published today (16 September) in Nature.

17 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

Hedgehog coronaviruses reveal potential pathways for cross-species transmission

Washington State University researchers have discovered how a group of coronaviruses circulating in hedgehogs invades host cells, a key to understanding their potential to jump between species and their risk of causing a pandemic in humans.

16 Sep 2026

Study confirms continued effectiveness of antibodies and vaccines used to prevent RSV infections

An analysis of more than 60,000 respiratory syncytial virus (RSV) sequences from around the world found that viral variants associated with resistance to current RSV prevention tools remain rare, according to a study published Sept. 16 in Nature.

16 Sep 2026

New AACR report outlines future of cutting-edge cancer research

Today, the American Association for Cancer Research (AACR) released the 16th edition of its annual Cancer Progress Report.

16 Sep 2026

Harvard scientists design evolutionary traps to stop viral mutations

When a virus mutates, the world usually finds out the hard way. Variants of influenza and SARS‑CoV‑2 can slip past vaccines and antibody drugs before scientists fully understand what has changed.

15 Sep 2026

Insilico Medicine launches AI initiative to develop longevity vaccines

Insilico Medicine, a clinical-stage generative artificial intelligence (AI)-driven drug discovery company, today announced Longevity Vaccines, a research initiative developing treatments that direct a patient's own immune cells to eliminate the earliest cellular drivers of age-related disease.

15 Sep 2026

Bacterial strains determine pneumonia and meningitis risk from air pollution

Air pollution leads to different risk of bacterial pneumonia, sepsis, and meningitis, depending on the subtype of bacteria a person has, new research suggests.

15 Sep 2026

Study shows mRNA vaccines trigger more diverse flu antibody responses

Influenza remains a major global health challenge as continual antigenic drift can limit the breadth and durability of vaccine-induced antibody responses, requiring frequent vaccine updates.

11 Sep 2026

Avoiding antibody-dependent enhancement enables dengue prevention and treatment

Dengue virus is one of the most widespread vector-borne viral pathogens in the world. Nearly 400 million dengue virus infections occur each year, resulting in approximately 20,000 deaths.

10 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

Weakened form of Mpox drove the 2022 global outbreak

The strain of Mpox behind the 2022 outbreak was a weakened form of the virus, which may have helped to spread it faster, a new study from the University of Surrey reports.

9 Sep 2026

Updated COVID-19 vaccines protect adults with autoimmune rheumatic conditions

In an Arthritis & Rheumatology analysis of data on 60,980 US adults with autoimmune rheumatic conditions who developed COVID-19 between December 2020 and August 2024, those who received booster or updated (2023-2024) COVID-19 vaccines were less likely to be hospitalized for COVID-19 compared to those who received only the initial series vaccines or who were unvaccinated.

9 Sep 2026

New AI method tracks immune responses without known antibody databases

A research team comprising Associate Professor FUNAKOSHI Yohei, Associate Professor YAKUSHIJIN Kimikazu, Professor MINAMI Hironobu, and Associate Professor OHJI Goh of Kobe University, together with graduate student MASUDA Genki, then-graduate student IIZUMI Shunsuke, Associate Professor OHUE Masahito, and colleagues at the Institute of Science Tokyo, has developed a new analysis method, LM-QASAS.

9 Sep 2026

COVID-19 linked to lower subsequent risk of type 1 diabetes

New research to be presented at the Annual Meeting of The European Association for the Study of Diabetes (EASD) in Milan, Italy (Sept 28 – Oct 2) shows that people who have had COVID-19 have a lower, rather than higher, risk of subsequent development of type 1 diabetes (T1D).

8 Sep 2026