Merck at IDWeek 2026

Oct 21–24, 2026 Washington, DC ~12k attendees Website

Merck brings 23 presentations to IDWeek 2026 in Washington, and exhibits at Booth 605, 705, BS 26, BS 27. Its program centres on RSV protection for infants with the antibody clesrovimab, pneumococcal disease and vaccination in adults, and new HIV treatment and prevention options. One concrete thread reports a weekly islatravir and ulonivirine regimen that kept HIV suppressed after switching.

OrganizationIDWeek 2026 Attendance
Merck
Rahway, NJ
Large pharma
Global biopharmaceutical company, called MSD outside the US and Canada, that develops medicines and vaccines for people and animals.
Booth
Exhibiting at Booth 605, 705, BS 26, BS 27
Thu, Oct 2210am–2pmFri, Oct 2310am–2pmSat, Oct 2410am–2pm
Poster
Thu Oct 22
12:15pm–1:30pm
Clesrovimab safety and exposure levels in infants under 2 kilograms: A subgroup analysis of the phase 3 SMART study
Poster Hall B-C · Poster P-1652
P3. Pediatric Viral studies (natural history and therapeutic)
Poster
Thu Oct 22
12:15pm–1:30pm
Clinical and Economic Burden of Infection Related to Carbapenem-resistant Pathogens in Taiwan
Virtual presentation
N2. Health Care-Associated Infections: Surveillance
Poster
Thu Oct 22
12:15pm–1:30pm
Impact of Antidrug Antibodies on the Pharmacokinetics, RSV Serum-Neutralizing Activity, and Safety of Clesrovimab in a Phase 3 Trial (SMART)
Poster Hall B-C · Poster P-1671
P3. Pediatric Viral studies (natural history and therapeutic)
Poster
Thu Oct 22
12:15pm–1:30pm
Impact of Clesrovimab on Commercially Available RSV Rapid Antigen Based Diagnostic Assays
Poster Hall B-C · Poster P-648
D2. Virology
Poster
Thu Oct 22
12:15pm–1:30pm
RSV Coinfection With Community Respiratory Pathogens Following Administration of Clesrovimab in the Phase 3 SMART Trial
Poster Hall B-C · Poster P-1661
P3. Pediatric Viral studies (natural history and therapeutic)
Poster
Thu Oct 22
12:15pm–1:30pm
RSV Incidence Rates in RSV Season 2 of the Phase 3 SMART Trial of Clesrovimab: Impacts of Participant Population and RSV Circulation
Poster Hall B-C · Poster P-1654
P3. Pediatric Viral studies (natural history and therapeutic)
Talk
Thu Oct 22
12:20pm–12:25pm
Part of Rapid-Fire Poster Session: Pediatric Respiratory Infections
RSV Incidence Rates in RSV Season 2 of the Phase 3 SMART Trial of Clesrovimab: Impacts of Participant Population and RSV Circulation
RF Arena 3
Respiratory infections and COVID-19Vaccines
Industry
Fri Oct 23
7:00am–8:00am
Help Protect Infants From RSV Lower Respiratory Tract Disease in Their First RSV Season
Marquis Salon 12+13
with University of Pittsburgh
Respiratory infections and COVID-19Vaccines
Industry
Fri Oct 23
8:00am–9:00am
Recognizing and Addressing Risks of Shifting Epidemiology of Pneumococcal Disease in Adults 50+
Marquis Salon 12+13
with Saint Michael's Medical Center
VaccinesRespiratory infections and COVID-19
Industry
Fri Oct 23
11:15am–12:00pm
Exploring a Switch Regimen for Appropriate Adults Living With HIV-1
Learning Lounge 1
with Saint Michael's Medical Center
HIV, sexually transmitted infections and viral hepatitisAntimicrobials, resistance and stewardship
Poster
Fri Oct 23
12:15pm–1:30pm
Exploring Preferences and Adherence & Persistence among Individuals Initiating PrEP in Portugal: the POSITIVE CARE Study
Poster Hall B-C · Poster P-970
H2. HIV: Prevention
Poster
Fri Oct 23
12:15pm–1:30pm
Exposure-Response Analysis of Islatravir 0.25 mg With Doravirine 100 mg Once Daily in Treatment-Naive and Virologically Suppressed People Living With HIV-1 at Week 48
Poster Hall B-C · Poster P-1053
H4. HIV: Treatment
Poster
Fri Oct 23
12:15pm–1:30pm
Potential Drug-Drug Interactions in People Living With HIV on Antiretroviral Therapy Stratified by Age and Sex
Poster Hall B-C · Poster P-1112
H5. HIV: Complications and co-infections
Poster
Fri Oct 23
12:15pm–1:30pm
Switching to Islatravir + Ulonivirine Once Weekly Maintained HIV-1 Viral Suppression at Week 24 in the Presence of Baseline NNRTI Resistance-Associated Mutations and M184I/V in Proviral DNA
Poster Hall B-C · Poster P-1029
H4. HIV: Treatment
Talk
Sat Oct 24
11:30am–11:43am
Part of Breaking News: Scaling Up HIV Prevention
Phase 1 Study to Evaluate the Absorption, Metabolism, and Excretion of MK-8527, a Nucleoside Reverse Transcriptase Translocation Inhibitor, in Adults Without HIV
102 AB
HIV, sexually transmitted infections and viral hepatitis
Poster
Sat Oct 24
12:15pm–1:30pm
A Comparative Analysis of HIV Transmission Model Structure with Matched Survey-Derived Contact-Rate Inputs: Policy Implications Under Economic and Resource Trade-offs
Poster Hall B-C · Poster P-297
H6. HIV: Social determinants of health
Poster
Sat Oct 24
12:15pm–1:30pm
Anti Drug Antibody Responses to Clesrovimab Are Driven by Natural RSV Exposure Following Declining Protective Antibody Levels and Are Mitigated by Second-Season Dosing
Poster Hall B-C · Poster P-443
C4. Respiratory infections - viral
Poster
Sat Oct 24
12:15pm–1:30pm
Barriers to PrEP, HIV knowledge and perceived stigma among MSM and Heterosexual People Living with HIV in Portugal: The POSITIVE CARE Study
Poster Hall B-C · Poster P-317
H6. HIV: Social determinants of health
Poster
Sat Oct 24
12:15pm–1:30pm
Comparisons of Population Effects of Pneumococcal Vaccination Programs in the United States and Canada — Considerations for Future Immunization Policy
Poster Hall B-C · Poster P-1177
I2. Pediatric Vaccines
Poster
Sat Oct 24
12:15pm–1:30pm
Disease Severity and Serotype Distribution of PCV15-Type Non-Bacteremic Pneumococcal Pneumonia Among Hospitalized Adults in Taiwan
Poster Hall B-C · Poster P-468
C5. Respiratory infections - bacterial
Poster
Sat Oct 24
12:15pm–1:30pm
Population-Level Effects of Pneumococcal Conjugate Vaccines on Pneumococcal Disease in Europe: A Targeted Literature Review
Poster Hall B-C · Poster P-1178
I2. Pediatric Vaccines
Poster
Sat Oct 24
12:15pm–1:30pm
Safety and Immunogenicity of V116, an Adult-specific Pneumococcal Conjugate Vaccine, in Pneumococcal Vaccine-Naïve Adults ≥50 Years of Age: Post-hoc Analysis of Phase 3 Data in the Overall and East Asian Populations
Virtual presentation
I1. Adult Vaccines
Poster
Sat Oct 24
12:15pm–1:30pm
Social Determinants of Adult Vaccination in the United States (US): An Analysis of the National Health Interview Survey (NHIS)
Poster Hall B-C · Poster P-1124
I1. Adult Vaccines

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