Last Friday (27), the São Paulo State Health Department recorded the first case of yellow fever in the state since 2020. The patient in question is a 73-year-old man from the city of Vargem Grande do Sul. With the situation in mind, the Municipal Health Department began conducting an epidemiological investigation.
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According to the State Secretariat, the patient has already been discharged from the hospital. However, it is not known whether he had already been vaccinated against the disease in question. “Right now, the State’s Center for Epidemiological Surveillance (CVE), together with municipal surveillance, is carrying out the investigation in the region”, says the folder in a note.
The São Paulo State Department of Health also reported that vaccination coverage against the disease is at 64% in SP. Furthermore, the case sheds light on the importance of vaccination and awareness of routine immunization. It is also worth remembering that São Paulo faced an outbreak of yellow fever between 2016 and 2019.
According to the Ministry of Health, yellow fever is an acute febrile infectious disease, caused by a virus transmitted by vector mosquitoes, and has two transmission cycles: wild (when there is transmission in rural or forest areas) and urban.
Thus, the virus is transmitted by the bite of infected transmitting mosquitoes and there is no direct transmission from person to person. One of those responsible is the mosquito aedes aegypti, known for diseases such as dengue, zika and chikungunya.
The folder points out that, in severe cases, the person infected with yellow fever may develop some complications, such as high fever, jaundice (yellowish discoloration of the skin and whites of the eyes), hemorrhage (especially from the gastrointestinal tract) and, eventually, shock and multi-organ failure.
Source: Agência Brasil, Ministry of Health