Although several vaccines and drugs are available against SARS-CoV-2, the search for effective therapeutic agents for COVID-19 and future zoonotic coronaviruses continues. The RNA-dependent RNA polymerase (RdRp) is a relevant drug target in several RNA viral infections, such as SARS-CoV-2 (targeted by the approved drugs remdesivir and molnupiravir), hepatitis C, influenza and dengue viruses.

Mucormycosis, a fungal infection caused by fungi from the order Mucorales, can cause severe disease, especially in immunocompromised subjects. These fungi are ubiquitous and can be found in environmental sources such as crop residues and soil. Among the multiple factors that increase the risk of mucormycosis infection are immunosuppression and diabetes mellitus.

Although safe and effective vaccines for SARS-CoV-2 have been successfully developed, there are currently no therapeutic approaches available for treating acute infection, particularly for individuals at high risk of severe disease progression, and for preparedness against a potential new coronavirus pandemic.

A combination of Epstein-Barr virus (EBV) antibodies and genetic factors may be linked to an increased risk of multiple sclerosis (MS), according to a study led by scientists at Karolinska Institutet and Stanford University. “The Epstein-Barr virus has been a suspect for many years for having a role in causing MS. The evidence for it has increased though one has not really reached complete proof of its role,” Tomas Olsson told BioWorld.

The availability of effective antiretroviral therapy has lowered the risk, and the severity, of neural sequelae of HIV infection. “Early in the HIV pandemic, approximately 15% of people with HIV had dementia and or encephalitis,” Howard Fox told his audience. “Fortunately, with treatment, the prevalence of these severe disorders has been greatly lowered. But there is persistence of what are called more minor disorders – which are not minor if you have them.”

It was previously demonstrated that the HIV-1 integrase (IN)-interacting host factor INI1/SMARCB1 binds to HIV-1 IN through its Rpt1 domain of INI1 (INI1-Rpt1) and plays a key role in assembly and particle production.

In 2020, the Conference on Retroviruses and Opportunistic Infections (CROI) was the first scientific conference to move from in-person to virtual due to the COVID-19 pandemic. On the fifth anniversary of the virtual conference, and the pandemic, some of those earliest COVID-19 patients have still not recovered.

A new multi-omics approach to unpicking how noncoding gene variants influence the development of common chronic diseases has identified tens of thousands of instances where variants have an impact on gene expression levels and gene splicing, the post-transcriptional modification that allows one gene to code for multiple proteins.

At the 2025 meeting of the Conference on Retroviruses and Opportunistic Infections (CROI) it was the best of times, it was the worst of times. On the first full day of the conference, reports from the first HIV cure trial conducted in Africa, the RIO trial and others showed that perhaps, a broadly useful cure is on the horizon.