Dengue Vaccines in Latin America: What’s Approved and Where They’re Being Used
Latin America faces rising dengue cases driven by climate and vector spread. This article explores available vaccines and their uneven distribution across the region.
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Why Arbovirus Hotspots Form: Lessons from Brazil
Source: John Ragai from Petaling Jaya, Malaysia via Wikimedia Commons. Highlights • Climate and rainfall patterns predict arbovirus outbreak hotspots• Warmer temperatures accelerate mosquito infection and virus transmission• Environmental data can enable earlier outbreak warnings As Brazil prepares to hold major power and oil auctions in 2026, the country is once again confronting a familiar challenge: how…
Predicting the Next Surge: Using Zika–Chikungunya Clusters to Guide Intervention
Zika and chikungunya outbreaks in Brazil move together, not separately. Space-time analysis reveals overlapping clusters driven by shared Aedes aegypti dynamics, summer heat, and regional climate conditions. When ecological risk rises, multiple arboviruses surge simultaneously — reinforcing the need for surveillance systems that anticipate co-circulating threats, not isolated outbreaks.
From the Super Bowl Stage to Public Health Reality: Dengue in Puerto Rico
Dengue in Puerto Rico is shifting fast. Adults now make up most cases, hospitalizations exceed 50%, and DENV-3 has replaced DENV-1 as the dominant strain. These changes signal a new epidemiologic phase — and may warn of similar outbreaks emerging across Latin America.
Which Natural Repellents Protect Against Mosquitoes and Ticks?
Natural insect repellents are increasingly popular across Latin America, but most offer little real protection. A 2023 study tested plant-based ingredients against mosquitoes and ticks and found that only a few—cinnamon oil, clove oil, and geraniol—provided meaningful, multi-vector repellency. This blog breaks down which natural repellents actually work and what that means for real-world disease prevention.
Do Natural Insect Repellents Work? What The Science Says
Natural repellents are widely used across Latin America, but most fail to prevent mosquito bites. New evidence shows only a small number of plant-based ingredients provide real, short-term protection—highlighting the risks of relying on ineffective products.
How Dengue, Chikungunya, and Zika Symptoms Change With Age
An 18-year pediatric cohort study from Nicaragua shows that dengue, chikungunya, and Zika symptoms change with age and over the first 10 days of illness. Fever patterns, rashes, and blood markers evolve differently across childhood, revealing diagnostic clues that static symptom checklists often miss. Tracking symptom trajectories over time leads to more accurate differentiation of these infections.
Dengue Fever vs Dengue Hemorrhagic Fever: Critical Differences
Dengue is not a single disease with a single outcome. While most infections cause a self-limited fever, severe dengue follows a different and far more dangerous path. This article explains the critical differences between dengue fever and dengue hemorrhagic fever, why the highest risk often appears when fever breaks, and how recognizing plasma leakage can save lives.
Silent Dengue in Children: Why Fever-Based Diagnosis Is Failing
Dengue can occur without fever in children. An 18-year pediatric cohort study from Nicaragua shows that fever-based case definitions miss laboratory-confirmed dengue cases, some of which still display warning signs of severity. These findings reveal a critical blind spot in pediatric dengue surveillance.
How to Tell Dengue, Chikungunya, and Zika Apart in Children
Dengue, chikungunya, and Zika often circulate together, but in children they do not behave the same. Drawing on 18 years of pediatric data from Nicaragua, this analysis shows how symptom patterns and simple blood tests, rather than fever alone, can reliably distinguish these infections in real clinical settings.
Oropouche Virus Is Expanding: Are You in a Newly Emerging Hotspot?
Oropouche virus (OROV) is an emerging vector-borne disease rapidly expanding beyond the Amazon Basin and into new regions of Latin America and the Caribbean. Using advanced environmental and machine-learning models, researchers show that deforestation, land-use change, and climate conditions are creating widespread environments suitable for OROV transmission.
Which mosquito traps work? A research study gives key factors
Which mosquito traps work best? A study in the Peruvian Amazon found that UV light traps outperformed others, capturing more mosquitoes and greater species diversity. The results show that different traps attract different species and that forest areas harbor far more mosquitoes than human-occupied sites, highlighting the importance of trap choice for effective dengue surveillance.