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Open research questions in Virology and Viral Diseases

166 gap statements mined from Virology and Viral Diseases papers in our 4.5M-paper local library, which holds 928 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • The study highlights the need for maintaining high and equitable vaccination coverage.

    Measles Epidemic Waves: Cyclicity, Seasonality, and the Role of Children in the Formation of Outbreaks in the Kyrgyz Republic · 2026 · DOI

  • There is a lack of knowledge about the genome sequence of Fraser’s dolphin morbillivirus. The identification of FDMV as a distinct member of the genus Morbillivirus addresses this gap.

    Genome sequence of Fraser’s dolphin morbillivirus isolated from a stranded Fraser’s dolphin (Lagenodelphis hosei) in Hawaiʻi · 2026 · DOI

  • The dynamics of Nipah virus in India are not well understood. The roles of ecological factors and health systems in determining the outcome of Nipah virus outbreaks are not well studied.

    Two geographies, one virus: What recurrent Nipah spillover in India reveals · 2026 · DOI

  • The study faced challenges in collecting and analyzing data due to the limited availability of samples and the complexity of the study design. The study had to account for the potential biases and limitations of the data collection and analysis methods.

    Sero-epidemiological profiling of duck viral hepatitis, avian influenza, and Newcastle disease in transboundary waterfowl populations along the Indonesia–Malaysia border of West Kalimantan · 2026 · DOI

  • There is a lack of molecular surveillance data on circulating rubella virus genotypes in Nigeria. The study addresses the gap in knowledge on the genotypes of rubella virus circulating among pregnant women in Keffi, Nigeria.

    GENOTYPIC CHARACTERIZATION OF RUBELLA VIRUS AMONG PREGNANT WOMEN ATTENDING THE FEDERAL MEDICAL CENTRE AND GENERAL HOSPITAL IN KEFFI NIGERIA · 2026 · DOI

  • The molecular interaction between long viral RNA and nucleoproteins is not well understood. The high-resolution structures of nucleocapsids from segmented viruses have not been determined. The differences in RNA binding between segmented and non-segmented viruses are not fully understood.

    Differences in RNA Binding Between Segmented and Non-Segmented Negative-Strand Virus Nucleocapsids · 2026 · DOI

  • Limited studies have investigated the biological characteristics of NDV isolated from wild birds. The evolution rate of genotype IX NDV is exceptionally slow, with a remarkable 99% genetic homology between the oldest and most recent isolates.

    Genotype IX Newcastle disease virus isolated from wild birds is attenuated by hemagglutinin-neuraminidase mutation · 2026 · DOI

  • Vaccination coverage has dropped in recent years due to pandemic-related disruptions and health system challenges. Many affected children are either too young to be vaccinated or have missed their doses.

    Resurgence of measles in Bangladesh amid a global upsurge: an urgent call for emergency public health response · 2026 · DOI

  • The neutralizing activity present in human serum is considered a correlate of protection against SARS-CoV-2 infection and disease but the mechanisms by which serum antibodies are transported into the lumen of the respiratory tract, where they are required to interact with virus particles and infected cells remain incompletely understood.

    Antibody Transcytosis and Neutralizing Activity in Respiratory Epithelial Cells · 2026 · DOI

  • There is a need to assess the level of population immunity to these diseases in different regions.

    Herd immunity to measles, rubella, and mumps in several Russian regions · 2026 · DOI

  • Balancing the need to protect vulnerable populations with the need to maintain child care services.

    Measles Outbreak in a Child Care Facility — Lubbock, Texas, March–April 2025 · 2026 · DOI

  • The study highlights the need for improved vaccination coverage and public health strategies to control measles outbreaks.

    Measles and rubella seropositivity among suspected measles cases in northwestern region of Nigeria · 2026 · DOI

  • Within the genus Bandavirus, the non-structural protein NSs functions as the primary antagonist of innate immune responses, although mechanistic details for BHAV remain unknown.

    Functional divergence of the NSs protein defines interferon antagonism and viral fitness across Bhanja virus lineages. · 2026 · DOI

  • Measles transmission can occur through various routes, including international travel and local spread. Vaccination and surveillance strategies are critical to preventing measles transmission. There is a need to develop targeted interventions to reduce measles transmission in high-risk populations.

    Measles epidemiology in Australia: 2014 to 2024 · 2026 · DOI

  • The study is limited to data from the National Notifiable Disease Surveillance System. The study does not provide a comprehensive review of prior work on measles epidemiology in Australia.

    Measles epidemiology in Australia: 2014 to 2024 · 2026 · DOI

  • The study had a limited sample size, with 87 samples selected for whole-genome sequencing. The molecular resolution was too low to confirm all separate epidemiologically linked transmission chains. Some regions of the genome had low coverage, with < 50 reads.

    Whole genome sequencing of measles viruses: the benefit for outbreak investigation, The Netherlands, 2013–2014 · 2026 · DOI

  • No inter-rater validation of geographic origin was performed. Genotypes were taken from submitter labels rather than re-called against WHO reference strains or WHO MeaNS. The study did not attempt to reconstruct full-genome phylogeny or transmission-chain reconstruction due to limited data.

    Measles Virus Genomic Surveillance Gaps during a Nationwide Outbreak, Bangladesh, 2026 · 2026 · DOI

  • One challenge is the development of vaccination hesitancy, which has led to the re-emergence of measles. Another challenge is the need for new approaches to control the disease, as traditional ring vaccination may not be sufficient. The study also faces the challenge of translating the results from the ferret model to humans.

    Antiviral GHP-88310 blocks contact-mediated and airborne transmission in a ferret model of measles-like disease · 2026 · DOI

  • The sample size was limited to 350 participants. The study did not investigate the clinical manifestations of rubella virus infection in the participants.

    GENOTYPIC CHARACTERIZATION OF RUBELLA VIRUS AMONG PREGNANT WOMEN ATTENDING THE FEDERAL MEDICAL CENTRE AND GENERAL HOSPITAL IN KEFFI NIGERIA · 2026 · DOI

  • Limited resolution of traditional sequencing methods. Difficulty in identifying molecular clusters and transmission chains. Potential for multiple introductions of the virus during outbreaks.

    Whole genome sequencing of measles viruses: the benefit for outbreak investigation, The Netherlands, 2013–2014 · 2026 · DOI

  • We employed multiplex immunohistochemistry techniques to profile specific cell populations which identified NiV antigen in both maternal and fetal cells of the placenta, which has not been previously described in NHP models of NiV disease.

    Vertical transmission of Nipah virus in an experimentally infected nonhuman primate; a brief report and description of histopathological lesions · 2026 · DOI

  • The study identifies a gap in the understanding of the evolutionary dynamics and genetic diversity of the MF-NCR of MeV.

    Tracking the phylogenetic profile of the MF-non-coding region of measles virus · 2026 · DOI

  • Disruptions in routine immunization during the COVID-19 pandemic. Vaccine hesitancy and misinformation. Persistent health system gaps.

    Resurgence of measles in Bangladesh amid a global upsurge: an urgent call for emergency public health response · 2026 · DOI

  • Further evaluation of MIR2911 in infection-relevant models. Investigation of the efficacy of MIR2911 in vivo. Exploration of the potential of multisite targeting to enhance MIR2911 activity.

    MIR2911 is a potential inhibitor for Nipah virus · 2026 · DOI

  • Establishing targeted sequencing pipelines to improve genomic surveillance. Enforcing minimum metadata standards to ensure rapid public data deposition. Conducting further studies to reconstruct full-genome phylogeny or transmission-chain reconstruction.

    Measles Virus Genomic Surveillance Gaps during a Nationwide Outbreak, Bangladesh, 2026 · 2026 · DOI

Most-cited papers in Virology and Viral Diseases

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Open questions raised by papers listed on this page include: (1) There is a lack of knowledge about the genome sequence of Fraser’s dolphin morbillivirus (“Genome sequence of Fraser’s dolphin morbillivirus isolated from a stranded…”, 2026); (2) The dynamics of Nipah virus in India are not well understood (“Two geographies, one virus: What recurrent Nipah spillover in India reveals”, 2026); (3) There is a lack of molecular surveillance data on circulating rubella virus genotypes in Nigeria (“GENOTYPIC CHARACTERIZATION OF RUBELLA VIRUS AMONG PREGNANT WOMEN ATTENDING THE…”, 2026); (4) The molecular interaction between long viral RNA and nucleoproteins is not well understood (“Differences in RNA Binding Between Segmented and Non-Segmented Negative-Strand…”, 2026); (5) There is a need to assess the level of population immunity to these diseases in different regions (“Herd immunity to measles, rubella, and mumps in several Russian regions”, 2026). 166 gap statements have been mined from Virology and Viral Diseases papers in our 4.5M-paper local library, which holds 928 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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