Clinical Immunology Society - CIS Annual Meeting

Book the flight into Denver International (DEN) for 13 April and check connection times if you are routing through a US hub — DEN is roughly 25 mi (40 km) northeast of downtown; the RTD A Line commuter rail and rideshare both run to the city centre.

Reserve a hotel for 13-17 April: downtown for walking distance to the convention campus, Cherry Creek for a quieter base, or a DEN airport property if your flight lands late — Ask whether the rate includes breakfast and what parking or valet costs per night.

Download the annual meeting programme and shortlist the sessions on inborn errors of immunity, immune dysregulation and clinical case management that match your practice — The schedule is published on cis.clinimmsoc.org; mark second choices because clinical tracks often run in parallel.

Review the poster and abstract listing and write down the authors and case series you want to discuss in the poster hall — Poster sessions are the fastest route to peer discussion on rare immune deficiency phenotypes.

Check your passport validity and confirm your US entry route (ESTA for Visa Waiver Program nationals, or a B-1/B-2 visa otherwise); Carry your registration confirmation, invitation letter and institutional affiliation details in both digital and printed form for the US border and the badge desk — Conference travel is normally admitted as B-1 business visitor activity or under ESTA.

Decide your DEN ground transport before you land: RTD A Line commuter rail into Union Station, taxi, rideshare, or a hotel shuttle if you booked near the airport; Check the mid-April Denver forecast and confirm your hotel's parking or transit plan for the convention centre days — April can swing from mild afternoons to a short snow shower within a day.

Pack layers, a light waterproof shell, comfortable walking shoes, sunglasses and high-factor sunscreen for high-altitude April sun — Denver sits at roughly 1,600 m, so bring a refillable bottle and plan to drink more water than usual.

Set up US roaming or an eSIM, download the programme PDF and save your hotel and convention centre addresses offline — Avoid discussing identifiable patient details on public venue Wi-Fi.

Travel day: land at DEN, take the A Line or a rideshare downtown, and collect your badge if the registration desk opens the day before the meeting — Keep the evening light and hydrate; the first night at altitude is when headaches are most common.

Confirm your CIS 2027 registration status on cis.clinimmsoc.org and check whether your institution needs a purchase order or a letter of invitation before payment; First session day: arrive early for badge pick-up and security screening, then map your track for the day — Security lines at the convention centre lengthen around the opening session.

Block 13-18 April 2027 in your clinic calendar and arrange cover for the immune deficiency and immune dysregulation patients you will not see while travelling — Arriving on 13 April gives a buffer before the 14 April opening and time to acclimatise to Denver's altitude.