Contagion Editorial Team

Peptilogics has enrolled the first patient in its RETAIN trial evaluating PLG0206, a first-in-class anti-biofilm therapy designed to treat prosthetic joint infections.

A phase 2 trial published in The Lancet Infectious Diseases found that the investigational antibiotic CRS3123 achieved high clinical cure rates comparable to vancomycin while significantly reducing recurrence and preserving the gut microbiome in patients with Clostridioides difficile infection.

This week, read about the latest measles numbers, a risk assessment and antibiotic treatment of GAS pharyngitis, an analysis of ceftolozane-tazobactam over aminoglycosides/polymyxins for resistant P aeruginosa, and more.

By launching during the Super Bowl pregame and the Grammy Awards, Gilead’s One2PrEP campaign used music, mainstream media, and bold visibility to normalize conversations about HIV prevention and expand awareness of evolving PrEP options.

Moderna has cleared a major regulatory milestone in Europe after the EMA’s CHMP recommended approval of mRNA-1083 (mCOMBRIAX), the world’s first combined influenza and COVID-19 vaccine for adults aged 50 and older.

This week, read about the newest measles update, a clinician's insights on treating the respiratory disease, as well as the latest HIV therapeutic data coming from the CROI conference.

Phase 1 data show that the long-acting HIV-1 capsid inhibitor VH-499 is well tolerated as a single intramuscular or subcutaneous injection and demonstrates pharmacokinetics supportive of long-acting dosing intervals.

New in vitro data presented at CROI show that Atea Pharmaceuticals’ oral nucleotide analogue AT-587 demonstrates markedly superior potency against hepatitis E virus compared with existing off-label options, supporting plans to advance the candidate into phase 1 clinical development in 2026.

Amy Colson, MD, MPH, discusses data from the MK-8591A-052 trial that showed that switching to doravirine/islatravir maintained durable virologic suppression with efficacy and safety comparable to continuing bictegravir/emtricitabine/tenofovir alafenamide.

New 96-week subgroup data from the PASO-DOBLE study show that adults with virologically suppressed HIV who switched to dolutegravir/lamivudine experienced significantly lower rates of steatotic liver disease than those who switched to bictegravir/emtricitabine/tenofovir alafenamide, particularly among individuals with clinically meaningful weight gain.

In the phase 3 ARTISTRY-2 trial, switching people with virologically suppressed HIV from B/F/TAF to a once-daily bictegravir/lenacapavir single-tablet regimen maintained viral suppression through week 48 with comparable safety and tolerability.

In a phase 3 study of virologically suppressed adults with HIV, switching to once-daily doravirine/islatravir (DOR/ISL 100/0.25 mg) maintained high rates of viral suppression through 96 weeks, with no emergent resistance and a favorable safety profile.

Traws Pharma announced positive phase 2 results showing its investigational COVID-19 antiviral ratutrelvir as a possible alternative to Paxlovid, including for ineligible patients, while advancing tivoxavir marboxil as a once-monthly oral prophylactic for seasonal influenza.

This week, read about the changes to the pediatric vaccine schedule, RSV protection, the FDA reversing course on Moderna's influenza vaccine, and more.

In this month's column, we look at the recommendation changes made by the CDC to the pediatric vaccine schedule, as well as the American Academy of Pediatrics' response with its own vaccine schedule.

New phase 3 data show that Merck’s clesrovimab (Enflonsia) maintained a favorable safety profile and supportive pharmacokinetics in high-risk children under 2 years of age during a second RSV season. The company plans to file for expanded regulatory approval.

The federal agency is bringing over NIH Director Jayanta "Jay" Bhattacharya, MD, PhD, to fill the position.

Invivyd has aligned with the FDA on the design of a phase 3 trial evaluating the safety and immunology of the company's monoclonal antibody, VYD2311, vs mRNA COVID vaccines and in co-administration.

New real-world evidence presented by GSK shows its RSV vaccine, Arexvy, was associated with substantial reductions in RSV-related hospitalizations and serious cardiovascular and respiratory complications among older adults.

After initially refusing to review Moderna’s investigational mRNA-based seasonal influenza vaccine, the company communicated with the FDA on a revised proposal to seek approval and the federal agency will now review the product. The vaccine's PDUFA decision date is August 5, 2026.

A newly proposed federal insurance rule for 2027 omits long-promised protections on co-pay assistance, allowing insurers and pharmacy benefit managers to continue diverting billions of dollars intended to help patients afford prescription drugs.

Findings from a real-world population study from Spain show that universal infant immunization with Beyfortus significantly reduced RSV-related hospitalizations not only in the first RSV season but also into the second year of life.

A 6-year study in Liberia shows that Lassa fever is frequently missed in febrile patients, leading to preventable deaths and underscoring the urgent need for earlier diagnosis and improved testing.

This week, listen in on commentary around the potential removal of the COVID-19 vaccine from the US market, read about FDA's refusal to review Moderna's influenza vaccine, CDC's investigation on invasive E coli, and more.

The FDA declined to review Moderna’s mRNA flu vaccine application for its mRNA-1010 product, and based its decision on it choice of comparator in a phase 3 trial, despite the absence of safety or efficacy concerns and prior FDA agreement on the study design. Moderna requested a meeting to understand the path forward with the vaccine.

A large international study published in The Lancet shows that obesity substantially increases the risk of severe illness and death from most infectious diseases, potentially accounting for more than 10% of infection-related deaths worldwide.

In a new policy paper, the American College of Physicians (ACP) argues that referring to physicians as “providers” is not merely semantic but contributes to the commercialization of medicine, eroding professional identity, ethical practice, and the physician–patient relationship.

This week, listen in on commentary around the ongoing measles outbreak, read our new Antibiotics Deconstructed column on IV fosfomycin, review data on metformin preventing long COVID, insights on diagnostic stewardship, and more.

In a phase 3 trial, the novel oral antiviral pritelivir demonstrated superior lesion healing and better tolerability than existing therapies in immunocompromised patients with refractory or resistant herpes simplex virus infections.

Findings from a growing body of randomized trials and real-world analyses show that starting metformin during acute SARS-CoV-2 infection is safe and significantly reduces the risk of developing long COVID.