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.

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What is a Toxoid Vaccine?

Hib Immunization

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History of Vaccination

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What is an Inactivated Vaccine?

Vaccine Schedule

Vaccine Delivery

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What are the Main Causes of Vaccine Hesitancy?

What are Adenovirus-Based Vaccines?

Insight into Personalized Vaccines

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Transforming Vaccine Design: The Promise of Systems Biology

Latest Vaccine News and Research

New vaccine approach targets broad protection against arenavirus infections

Scientists at La Jolla Institute for Immunology (LJI) have discovered that combining key vaccine ingredients could give the body the tools it needs to fight the entire family of arenaviruses with a single vaccine.

21 May 2026

Wastewater tracking catches hospital fungus before patients show symptoms

A new UNLV-led wastewater surveillance study brings scientists one step closer in the global race to detect and deter skyrocketing cases of a potentially deadly drug-resistant fungus that puts hospital patients at risk of serious blood, heart, or brain infections.

20 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

New mRNA vaccine strategy dramatically amplifies cancer-fighting T cells

Engineers from the University of Houston, MIT and Harvard have developed a new mRNA-based strategy that dramatically amplifies the T-cell response to vaccines - an advance that could lead to far more powerful cancer vaccines and stronger protection against infectious diseases.

19 May 2026

Climate change drives emerging vector-borne diseases in Canada

Climate change is affecting the local ecology in Canada, contributing to emerging tick- and mosquito-borne diseases and infections in humans, argue authors of a commentary published in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.260668.

19 May 2026

Bundibugyo virus outbreak triggers international public health emergency declaration

Pursuant to paragraph 2 of Article 12 - Determination of a public health emergency of international concern, including a pandemic emergency of the International Health Regulations (2005) (IHR), the Director-General of the World Health Organization (WHO), after having consulted the States Parties where the event is known to be currently occurring, is hereby determining that the Ebola disease caused by Bundibugyo virus in the Democratic Republic of the Congo and Uganda constitutes a public health emergency of international concern (PHEIC), but does not meet the criteria of pandemic emergency, as defined in the IHR.

18 May 2026

Health experts outline symptoms and risks of shipboard hantavirus

It's one of the cruisegoer's biggest fears: a contagious disease outbreak at sea.

18 May 2026

Asymptomatic transmission plays a prominent role in mpox infection patterns

A Kaiser Permanente study of nearly 8,000 men shows that in mid- to late 2024, mpox was far more common among men who have sex with men than previously thought. Individuals without symptoms accounted for most infections and likely played a prominent role in transmission, contrary to prior assumptions that people had to be symptomatic to spread the disease.

15 May 2026

Turning the flu virus into a powerful tool to fight cancer

A recent Views & Comments article published in Engineering highlights advances in repurposing influenza viruses as flexible therapeutic platforms for infectious diseases and cancer, driven by progress in reverse genetics and viral vector engineering.

14 May 2026

New mRNA adjuvant dramatically boosts T-cell vaccine responses in mice

MIT engineers have developed a new way to amplify the T-cell response to mRNA vaccines - an advance that could lead to much more powerful cancer vaccines and stronger protection against infectious diseases.

13 May 2026

New malaria vaccine offers long-lasting protection without refrigeration

Malaria is a deadly disease killing more than half a million people every year, but a new vaccine is showing promise as it not only offers long-lasting strong protection but also inhibits transmission of malaria by mosquitos.

13 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

Rockefeller scientists reveal how HIV strains escape broadly neutralizing antibodies

Broadly neutralizing antibodies (bNAbs) are among the most promising new treatments for HIV, offering the potential to forego traditional daily dose of antiretroviral drugs.

11 May 2026

Andes hantavirus outbreak highlights global spillover and transmission risks

A Virginia Tech disease ecologist said the outbreak of Andes hantavirus aboard the international MV Hondius cruise ship underscores how little scientists still know about the viruses circulating silently in wild rodent populations before they spill into humans.

11 May 2026

Promising new Hanta virus vaccine under development by University of Bath researchers

A highly promising vaccine for Hanta virus is being developed by researchers from the University of Bath. The team is led by Professor Asel Sartbaeva, Chemistry researcher at the University and co-founder of University spinout company Ensilitech.

8 May 2026

Study explores nasal spray flu vaccine effects in children

A new study will explore the effects of a nasal spray flu vaccine on children's immune systems, aiming to boost future protection and lower vaccine hesitancy rates.

7 May 2026

Scientists identify powerful human antibodies capable of neutralizing measles virus

Scientists at La Jolla Institute for Immunology (LJI) are the first in the world to characterize human antibodies capable of neutralizing measles virus.

7 May 2026

Extensive data analysis confirms the safety of aluminum adjuvanted vaccines

Current evidence does not support direct (causal) associations between aluminium adjuvanted vaccines and serious or long-term health outcomes, including autism, diabetes, and asthma, finds a review of the latest data published by The BMJ today.

7 May 2026

4basebio announces lease of an innovation hub and manufacturing facility in Cambridge, UK

4basebio PLC, a specialist in synthetic DNA manufacturing and nucleic acids for next-generation therapeutics, announces a significant expansion into a new innovation hub and manufacturing facility in Cambridge, UK, supporting growing demand for research and high-quality grade manufacturing of synthetic DNA for gene and cell therapies, mRNA vaccines, genome editing, or DNA vaccines.

From 4basebio PLC 6 May 2026

Cervical cancer gap will widen without urgent global action

Global modeling reveals that without urgent action, cervical cancer inequalities will worsen, highlighting the need for enhanced vaccination and screening.

6 May 2026