Join the #IDWeek2026 session, “Microbe Drift: How Climate Change Shapes Microbial Adaptation and ID Practice” to explore emerging patterns across viral, fungal, bacterial and parasitic diseases and what they mean for ID practice.

Learn more and register for IDWeek: https://bit.ly/4ycoAks

And the answer is... What is melanin?

See you next Thursday for another #IDBugBowl Pop Quiz!

#IDWeek2026 looks forward to welcoming fellows, residents and students to Washington, D.C.!

Here are some tips on how to make the most of your conference experience, including free ice cream 🍦: https://bit.ly/4zmeoqk

It's another #IDBugBowl Pop Quiz! What type of pigment, found in various pathogenic fungi, is known to bind to antifungals as well as host-derived microbicidal peptides and reactive oxygen species, potentially contributing to drug resistance & virulence?

Answer reveal tomorrow.

Give back during #IDWeek2026! IDWeek is partnering with the American Red Cross for a blood drive on Oct. 22 at the Walter E. Washington Convention Center in Washington, D.C.

Advanced registration is required to donate. Sign up: https://rcblood.org/4y0uy7H

From Ebola in Africa to Andes hantavirus, explore lessons from recent outbreaks at #IDWeek2026. Join “Latest Outbreaks: Ebola & Hantavirus” to hear insights from experts on these evolving infectious disease threats.

Learn more and register for IDWeek: https://bit.ly/47664it

Have you checked out the IDWeek Daily News blog? It is your go-to resource for #IDWeek2026 news to prepare you for Washington, D.C.

Check it out today: https://bit.ly/4yGiBVO

What does the latest evidence mean for STI care? Join the #IDWeek2026 session, “Friendly Debates in STIs: Everything, Everywhere, All at Once” to explore evolving evidence, different perspectives and all that's shaping STI prevention and care.

Register: https://bit.ly/3O8HiIB

Register for #IDWeek2026 today so you CAN sit with us 💅: https://idweek.org/registration

Tell a friend... the puppies are coming BACK to #IDWeek2026! 🐶 Take a break in between sessions and play with some adorable dogs, available to foster and adopt, provided by Wolf Trap Animal Rescue.

This IDWeek experience is made possible by the generous support of GSK.

And the answer is... What is Bradyrhizobium enterica?

See you next Thursday for another #IDBugBowl Pop Quiz!

Don’t worry, we’ll hold it down at #IDWeek2026. 😎 https://www.idweek.org/registration/

Happy #IDBugBowl Pop Quiz Thursday! 🧠💡 Which novel bacterium has been proposed as the cause of cord colitis syndrome after umbilical cord blood transplantation?

Comment your guess below! Answer reveal tomorrow.

Explore the connections between HIV, STIs and substance use disorders at #IDWeek2026. Join “A Syndemic Approach: Great Cases in HIV, STIs and Substance Use Disorders” for a case-based look at these intersecting areas of care.

Learn more and register for IDWeek: https://cdmcd.co/GwYAyX

How can we detect foodborne outbreaks sooner and stop their spread? Explore the latest lessons from multistate outbreaks and Cyclospora at the #IDWeek2026 session, “Stopping the Spread: Surveillance, Investigation and Response to Foodborne Outbreaks.”

Register for IDWeek: https://bit.ly/3O8HiIB

Have a great idea for a session at #IDWeek2027? We want to hear it!

Submit a full session proposal, or just a quick idea, for the 2027 conference by Fri. Oct. 30: https://bit.ly/43u2j4Y

DYK that more than 30 affiliated events will be held during #IDWeek2026?

Learn more about learning lounges and opportunities for CE credit: https://bit.ly/3VcT5Ji

IDWeek is excited to welcome @agawande.bsky.social as the speaker for this year’s Opening Plenary, followed by a panel discussion on how collaboration across disciplines is essential to driving the infectious diseases field forward.

Register for #IDWeek2026: https://www.idweek.org/registration

And the answer is... What is Pott's puffy tumor?

See you next Thursday for another #IDBugBowl Pop Quiz!