Related Experiment Video
Updated: Jun 19, 2026

06:00
Portable Paper-Based Immunoassay Combined with Smartphone Application for Colorimetric and Quantitative Detection of Dengue NS1 Antigen
Published on: January 26, 2024
Dengue is a major global health problem. Foreword
Pratap Singhasivanon1, Julie Jacobson
1Regional Centre for Tropical Medicine, Mahidol University, Thailand. tmpsh@mucc.mahidol.ac.th
Summary
Developing an effective dengue vaccine is crucial due to the disease
Area of Science:
- Global Health
- Vaccinology
- Epidemiology
Background:
- Dengue fever poses a significant global health challenge, with increasing incidence and geographic spread.
- Over 3 billion people are at risk, and the disease incurs substantial economic burdens.
- Urgent need to establish the full human and economic impact of dengue.
Discussion:
- Vaccine development explores live, vectored, killed, and recombinant approaches.
- Candidates must confer simultaneous immunity against all four dengue serotypes to prevent severe secondary infections.
- Rigorous trial design, implementation, and surveillance are essential due to disease complexity.
Key Insights:
- Trial sites require documented hyper-endemicity and known serotype history.
- Ratchaburi province, Thailand, shows suitability for a tetravalent dengue vaccine efficacy trial.
- Accurate surveillance and monitored trials are vital for vaccine evidence.
Outlook:
- Successful dengue vaccine trials could revolutionize disease prevention.
- This research paves the way for a new era in combating dengue.
Related Concept Videos
Yellow Fever
Yellow fever is a viral hemorrhagic disease caused by the yellow fever virus (YFV), a member of the Flaviviridae family. It is transmitted primarily by Aedes and Haemagogus mosquitoes in tropical and subtropical regions of Africa and South America. After transmission through a mosquito bite, the virus initially replicates in skin-resident immune cells such as dendritic cells and macrophages. These cells then migrate to the lymph nodes, where viral replication increases, eventually leading to...
Infectious Diseases and Their Occurrence
Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...
Arboviral Encephalitis
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
Malaria
Malaria pathogenesis in humans reflects a delicate interplay between parasite biology and host response. Clinical illness reflects a host’s immune response to the parasite’s asexual replication cycle, which is often asymptomatic in individuals with partial immunity. From the parasite's perspective, transmission between mosquito and human with minimal host pathology is evolutionarily advantageous. Among the six Plasmodium species infecting humans, P. falciparum and P. vivax dominate in global...
Toxoplasmosis
Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
Principles of Disease Surveillance
Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
