Related Experiment Video
Updated: Jun 5, 2026
06:18
Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1
Published on: March 13, 2018
Transmission acceleration outperforms the endemic-channel threshold for dengue outbreak detection.
Keanu John Pelitro1, Julia Fye Manzano1, Troy Owen Matavia1
1University of the Philippines Resilience Institute, Quezon City, Philippines.
Medrxiv : the Preprint Server for Health Sciences
|June 4, 2026
Summary
Extreme weather complicates dengue outbreak prediction. New transmission acceleration detectors offer earlier and more reliable early warnings for dengue fever, outperforming traditional methods.
Area of Science:
- Epidemiology
- Climate Change Impact
- Public Health Surveillance
Background:
- Extreme weather events are increasingly disrupting historical patterns of dengue transmission.
- Existing dengue outbreak detection thresholds lack validation for extreme weather scenarios, hindering early warning systems.
Purpose of the Study:
- To evaluate the efficacy of transmission acceleration as an early warning signal for dengue outbreaks.
- To compare the performance of acceleration-based detectors against the traditional endemic-channel threshold under diverse epidemiological settings.
Main Methods:
- Transmission acceleration and endemic-channel thresholds were evaluated across a hyperendemic city, seventeen tropical regions, and eight dengue-endemic countries.
- Performance metrics included cases captured, lead time, warning persistence, and sensitivity.
Main Results:
- Acceleration-based detectors demonstrated superior performance, capturing significantly more dengue cases and providing greater lead time for warnings.
- At the city scale, transmission acceleration detected 4,257 cases compared to 1,119 with the endemic channel, achieving 100% sensitivity versus 30%.
Conclusions:
- Transmission acceleration provides a more robust and consistent signal for early dengue outbreak detection, especially under extreme weather conditions.
- Acceleration-based detectors are better suited for dengue surveillance in a changing climate, enabling timely anticipatory public health actions.
Related Concept Videos
01:18Steps in Outbreak Investigation
In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis:
01:24Transmission of Pathogens
Pathogens spread from their reservoirs to susceptible hosts through three main routes: contact transmission, vehicle transmission, and vector transmission. Each route involves distinct mechanisms of transfer.Contact TransmissionThis category includes direct contact, indirect contact, and droplet transmission:Direct contact involves immediate physical interaction between individuals—such as a handshake—which can spread pathogens like Streptococcus pyogenes, the bacterium responsible for...
01:28Infectious 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...
01:23Investigation of Disease Outbreaks
Multistate foodborne outbreaks pose significant public health risks and require meticulous investigation to identify sources and implement control measures. The Centers for Disease Control and Prevention (CDC) utilizes a dynamic seven-step process for these investigations, integrating data from laboratories, interviews, and environmental assessments to protect public health.Outbreak Detection: The detection of multistate outbreaks typically begins with PulseNet, the CDC's national laboratory...
01:17Transmission-based Precautions I: Contact, Enteric, and Droplets
Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...