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Rev. salud publica Parag. | Vol. 14 N° 1 | Ene - Abr 2024
EDITORIAL / EDITORIAL
Battling the Rising Tide: Challenges in Controlling Chikungunya in Latin America
Luchando contra la marea creciente: desafíos para controlar el chikungunya en América Latina
Alfonso J. Rodriguez-Morales.1,2,*
1Masters Clinical Epidemiology and Biostatistics, Universidad Científica
del Sur, Lima, Perú.
2Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación
Universitaria Autónoma de las Américas-Institución Universitaria Visión
de las Américas, Pereira, Colombia.
Corresponding author: arodriguezmo@cientifica.edu.pe,
alfonso.rodriguez@uam.edu.co
Responsible editor: Julieta Méndez-Romero.
How to reference this article: Rodriguez-Morales AJ. Battling the
Rising Tide: Challenges in Controlling Chikungunya in Latin America
Rev. salud publica Paraguay. 2024; 14 (1): 6-9.
Recibido: 15/04/2024. Aceptado: 25/04/2024.
Chikungunya, a mosquito-borne viral disease, has rapidly
emerged as a pressing public health concern in Latin
America since late 2013, posing significant challenges to
control efforts across the region1, 2. The rapid spread of the
disease during 2024-2025, coupled with limited
resources, infrastructure, and other factors, has
exacerbated the situation. However, the Latin American
public health community has demonstrated remarkable
resilience, requiring a coordinated and multifaceted
approach to combat this persistent threat3.
One of the primary challenges in controlling Chikungunya
in Latin America lies in the complex interaction between
the virus, its vectors, and the environment. Environmental
factors such as temperature and humidity influence the
distribution and abundance of Aedes mosquitoes, the
primary vectors of the Chikungunya virus (CHIKV). In
regions with favorable environmental conditions, vector
populations thrive, increasing the risk of disease
transmission. Urbanization and population growth have
also created breeding grounds for mosquitoes, further
facilitating the spread of Chikungunya. Addressing these
environmental determinants requires not just efforts but
sustained and persistent efforts in vector surveillance and
control and community engagement to promote
environmental management practices. The urgency of this
task cannot be overstated4, 5.
The current situation in the region is concerning. In 2023,
410,754 cases were reported in the Americas region
(Table 1). The highest number is in Brazil (265,503),
followed by Paraguay (140,095). In 2023, 419 deaths
were associated with CHIKV (Table 1). During the ongoing
2024, in just a few months, 204,889 cases have been
reported (Table 2), 201,092 in Brazil and 3,206 in
Paraguay (Table 2). Additionally, 75 deaths due to CHIKV
have already been reported in 2024 (Table 2).
Table 1. Chikungunya cases by country or territory in 2023, according to the Pan American Health Organization
(https://opendata.paho.org/en)
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Rev. salud publica Parag. | Vol. 14 N° 1 | Ene - Abr 2024
Rev. salud publica Parag. 2024; 14(1):6-9 8
Rev. salud publica Parag. | Vol. 14 N° 1 | Ene - Abr 2024
Battling the Rising Tide: Challenges in Controlling Chikungunya in
Latin America
Table 2. Chikungunya cases by country or territory in 2024 (first trimester), according to the Pan American Health
Organization (https://opendata.paho.org/en)
Despite that, multiple countries have reported CHIKV in
2022-2024 (Figure 1), showing the relevant geographical
spread in the region. CHIKV has become a significant
arboviral disease in the region, and after dengue, it is a
significant concern in the context of arboviruses
circulating6.
Furthermore, the mobility of populations within and across
borders presents a significant challenge to Chikungunya
control efforts in Latin America. Migration, trade, and
tourism contribute to the rapid dissemination of the virus,
which has been analyzed in some countries of the region7.
High levels of human movement facilitate the introduction
of the virus into new areas where susceptible populations
may lack immunity, leading to outbreaks and epidemics8.
Figure 1. Geographic distribution of Chikungunya cases in the Americas, 2022-2024, according to the Pan
American Health Organization (https://opendata.paho.org/en)
7 Rev. salud publica Parag. 2024; 14 (1)
Rev. salud publica Parag. | Vol. 14 N° 1 | Ene - Abr 2024
Battling the Rising Tide: Challenges in Controlling Chikungunya in
Latin America
Effective surveillance systems and cross-border
collaboration are essential for early detection and
response to imported cases, preventing the establishment
of sustained transmission chains. As public health
professionals, policymakers, researchers, and
stakeholders, your role in this is crucial. Moreover,
addressing migration's social and economic drivers, such
as poverty and conflict, can help mitigate the underlying
risk factors for Chikungunya transmission9, 10.
The burden of Chikungunya falls disproportionately on
vulnerable populations in Latin America, including the
poor, marginalized communities, and indigenous groups11-
14. Multiple studies highlight the social determinants of
health contributing to the unequal distribution of
Chikungunya burden, including inadequate housing,
limited access to healthcare, and poor sanitation
conditions11-14. These disparities exacerbate the disease's
impact, leading to higher morbidity and mortality rates
among disadvantaged populations. Addressing health
inequities requires a comprehensive approach that
integrates health promotion, access to healthcare
services, and social welfare programs to improve the
resilience of vulnerable communities and reduce their
vulnerability to Chikungunya and other vector-borne
diseases11-14. In addition, CHIKV may lead to chronic
infection, which has been previously observed and
confirmed in some countries in the region15-22.
Inadequate healthcare infrastructure and diagnostic
capacity pose significant challenges to the timely
detection and management of Chikungunya cases in Latin
America. Some studies highlight the limitations of current
diagnostic methods for Chikungunya, particularly in
resource-limited settings where access to laboratory
facilities is limited23. Misdiagnosis and underreporting of
cases hamper surveillance efforts and hinder the
implementation of targeted control measures.
Strengthening laboratory capacity, training healthcare
workers, and enhancing public awareness are essential
components of an effective response to Chikungunya,
enabling early detection, diagnosis, and treatment of
cases23.
In conclusion, the control of Chikungunya in Latin America
presents multifaceted challenges that require a
comprehensive and coordinated response from
governments, healthcare systems, and communities7.
Addressing environmental, social, and healthcare factors
is essential for mitigating the disease's impact and
preventing future outbreaks. By investing in vector
surveillance and control, strengthening healthcare
infrastructure, and addressing health inequities, Latin
American countries can enhance their resilience to
Chikungunya and improve the health and well-being of
their populations24.
Conflictos de interés: No se declaran conflictos de
intereses.
Financiación: Ninguna.
Contribuciones: AJRM: concepción, redacción y
aprobación final del manuscrito.
Declaración: Las opiniones expresadas en este
manuscrito son responsabilidad del autor y no reflejan
necesariamente los criterios ni la política de la RSPP y/o
del INS.
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Latin America
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