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General Information

The 12th Biennial Symposium of the International Eosinophil Society (IES) will take place 11-15 July 2023 at the David Braley Health Sciences Centre at McMaster University in Hamilton, ON, Canada. Hamilton is located on the western tip of Lake Ontario, just 36 miles (56 kilometers) southwest of Toronto. 

Hamilton is home to the Royal Botanical Gardens, the Canadian Warplane Heritage Museum, the Bruce Trail, McMaster University, Mohawk College, and Redeemer University. McMaster University is ranked 4th in Canada and 69th in the world by Times Higher Education Rankings 2021.


The currency used in Canada is the Canadian Dollar (CAD). There are ATMs widely available for cash withdrawal. Credit cards are also accepted at most hotels, restaurants and shops.


The standard electrical voltage in Canada is 120 Volts and 60 Hertz.

Eosinophil Portraits


This year's meeting will feature an art exhibit titled 'Eosinophil Portraits'. Uncovering the unique eosinophil universe, this exhibition features eosinophil images captured by electron microscopy and presented at the intersection of science and art. As a portrait, every image reflects a moment of the eosinophil's lifetime experience in health or disease and invites the viewer to engage with and learn from this multifaceted, enigmatic, and beautiful cell. The exhibition celebrates the release of the book Eosinophil Ultrastructure – Atlas of Eosinophil Cell Biology and Pathology (Elsevier, 2022) by Rossana Melo, Ann Dvorak, and Peter Weller. The book has the distinction of being the first entirely focused on the eosinophil ultrastructure and gathers the studies of three scientists who worked together for decades with a shared passion for the eosinophil world.

Photo: A human eosinophil migrating in the small intestine seen under transmission electron microscopy.


The official language of the 12th Biennial Symposium is English.

Networking Events

Several networking events are being planned for attendees, including:

Welcome Reception
Tuesday, 11 July at 7:30 pm
Art Gallery of Hamilton

Founded in 1914, the Art Gallery of Hamilton is the oldest and largest art museum in the region with a permanent collection that is recognized as one of the finest in Canada. Embracing Canadian historical, international, and contemporary art, the collection consists of more than 10,000 works.

Young Scientist Networking Event
Wednesday, 12 July at 7:30 pm

Optional Afternoon Networking Event
Thursday, 13 July from 12:30 pm - 4:00 pm (extra fee will apply)

Networking Dinner and Awards Ceremony
Friday, July 14 at 7:00 pm
Liuna Station

Liuna Station is a designated heritage site located in the heart of downtown Hamilton. Originally serving as a bustling train station, this stately building crafted by Canadian National was the last neo-classical styled station to be built in Canada. Completed in the Greek revival tradition, the façade of the structure is supported by four large stone pillars. Extensive use of brass is evident throughout the station. Some called the building a "temple to transportation". It reflected the optimistic mood that swept the country during the economic boom of the 1920s, officially opening on 27 May 1931.

Photography and Video Recording

IES is photographing and video recording portions of the Biennial Symposium. These photographs and video recordings, along with your name, may be used in IES publications or on the IES website. If you do not want your photo used, please inform the IES staff on-site.

Time Zone

Hamilton, Ontario is in the Eastern Daylight Time Zone (EDT), which is one hour behind of the Coordinated Universal Time (UTC).


While tipping is not mandatory in most of Canada, it is customary in many circumstances, especially at almost all sit-down restaurants. 


The closest major international airport, Toronto Pearson International Airport, is less than 60 minutes from Hamilton.

In addition, the following airports are conveniently located near Hamilton:
John C. Munro Hamilton International Airport:15 minutes from downtown Hamilton.
Billy Bishop Toronto City Airport: less than a 1-hour drive to Hamilton
Buffalo Niagara International Airport: less than a 2-hour drive to Hamilton

Airport Transportation

Several ground transportation options are available between the airport and Hamilton.

Uber/Lyft - $80 CAD *Available in Terminals 1 and 3
Taxi - $110 CAD (for sedan)
Shuttle: Airways Transit
Limo: Airport Limo Hamilton
Bus: GO Transit Bus to Hamilton


The average temperature in July is between 82°F/28°C and 63°F/17°C.

Important Dates

Abstract Submission Deadline: 15 March 2023
Travel Grant Application Deadline: 15 March 2023
Late-Breaking Abstract Deadline: 15 May 2023

Corporate Advisory Council
Platinum Member

Sanofi Regeneron

Gold Members

AllakosAmgenAstra ZenecaGSK

Bronze Members

Areteia TherapeuticsCelldexTakeda