Latin American Symposium
Latin American Symposium
What was the impact of the transmission of Dengue, Zika and Chikungunya, at the same time that the Pandemic began, with the transmission of the SARS-CoV-2 virus (COVID-19). We consider the “COVID Effect” to have an epidemiological impact on other diseases that is as important as the social and economic impact.
We can summarize the impact in 3 main cases: UNDERREPORTING of Arbovirus cases; THE INTERRUPTION OF ENTOMOLOGICAL SURVEILLANCE, home inspection for surveillance and control of the Aedes mosquito, due to the risk of contagion, both for the owner and the Health Agent; SEROLOGY AND DIAGNOSIS, the urgency of care caused by a pandemic of global magnitude, with risk of death, overloaded the health system, which consequently reduced the serological investigation of cases, including those of arboviruses. Why? due to initial symptoms very similar to those of Covid19, most of them, in the rapid and urgent diagnosis, were probably neglected, prioritizing symptomatic treatment and considering the case as suspected of Covid19.
At the beginning of 2022, with the arrival of vaccines and the commitment of world governments to vaccinate their population against Covid19, cases of the disease also decreased exponentially in both cases and cases with a risk of death. Generating pressure relief on health systems and allowing the resumption of routine services, including serological and primary diagnosis of Arboviruses. As a result, in the first two months of 2022, approximately 130,000 cases were reported with growth inversely proportional in speed to the reduction reported during the pandemic. In the capital of Brazil, for example, cities that saw a decrease of 70% in 2021 experienced an increase of more than 1,200% in 2022.
The change in climate temperature with the increase in temperature and its variation changes the seasonality of mosquito infestation and transmission of arboviruses in cities, demonstrative graphs.