The Evandro Chagas Institute confirms that the child contracted West Nile fever in Teresina

The Evandro Chagas Institute confirms that the child contracted West Nile fever in Teresina

Photo: Cidadeverde.com . Profile

The Evandro Chagas Institute of Municipal Health has confirmed another case of West Nile fever in Teresina. This is the tenth case recorded in the capital since 2013.

The case was confirmed of a child with meningoencephalitis, living in the capital’s countryside, who was admitted to the Lucidio Portela Children’s Hospital, in October 2021.

“After several days in the hospital, the child was discharged with partial improvement and continued with an outpatient follow-up. The genetic material of the virus was detected in the child’s cerebrospinal fluid using RT-PCR technology, which was performed at the Evandro Chagas Institute – a reference laboratory of the Ministry of Health” , as reported by Lina Vera, Director of Health Surveillance, in Info. A note was issued on this topic. the case.

According to the director, the case was investigated by the Arbovirus Neuroinvasive Disease Surveillance Program, where collected material was tested for herpes, enteroviruses, and several arboviruses (mosquito-borne viruses) – including dengue, Zika and Chikungunya and have now arrived. . The result confirms that it is the Nile fever virus.

“The Department of Zoonoses in Teresina Municipality has started to catch mosquitoes in the house and around the house of the sick child, in order to correctly identify the species in question and try to detect and isolate the virus,” he explained.

According to the director, this is the 10th confirmed human case of West Nile fever in Teresina, since the start of the arbovirus-carrying neurological disease surveillance program in 2013.

Of the other nine confirmed cases, eight were of people living in other municipalities and only one was from Teresina. The director said that the hospital network is trained and qualified to carry out the epidemiological examination of cases.

“In the first half of 2022, 78 cases of invasive neurological syndrome were investigated, of which 35 were infected with at least one arbovirus, among them: dengue, Zika, chikungunya, and urobush. These data reinforce that in addition to the syndromes Hemorrhagic fever caused by dengue and severe joint weakness caused by chikungunya, mosquito-borne viruses can seriously damage the nervous system of patients.In the first half of 2022, 78 cases of invasive neurological syndrome were investigated, including 35 cases associated with infection with at least one arbovirus, among them: dengue, Zika, chikungunya, and urobush These data reinforce that, in addition to hemorrhagic syndromes caused by dengue and severe joint weakness caused by chikungunya, mosquito-borne viruses can damage the nervous system to seriously ill patients. Therefore, it is necessary to strengthen preventive measures.”

the disease

According to Fiocruz, West Nile fever, or West Nile fever (WNF), is an acute viral infection caused by the Genus Flavivirus group with the ability to affect the central nervous system (CNS) or the peripheral nervous system. Like dengue, Zika and chikungunya, FNO is an arthropod virus transmitted by mosquitoes.

It participates in a preferential cyclic transmission cycle, being transmitted to some animals through the bite of infected mosquitoes while feeding blood to these insects. Incidentally, humans and other animals in these areas can be infected, resulting in the development of dangerous conditions, with the risk of death.

According to the World Health Organization (WHO), about 80% of those infected do not show any symptoms. Among the symptomatic cases, West Nile fever usually presents in a mild form with fever, headache, fatigue, and vomiting. Severe forms of the disease, such as meningitis and encephalitis, affect 1 in 150 infected people. Symptoms can range from a high temperature and a stiff neck to seizures, coma, and paralysis.

Note issued:

On 08/08/2022, the Directorate of Health Surveillance received the result of a confirmatory examination of a case infected with West Nile fever in
Teresina. This is a case of severe meningitis of a child residing in a rural area of ​​the capital, who was admitted to the Infantil Lucidio Portela Hospital, in
Oct/2021. After several days in the hospital, the child is discharged with partial improvement and continues to be followed up on an outpatient basis. The genetic material of the virus
It was detected in the cerebrospinal fluid of the child by RT-PCR technology, which was carried out at the Instituto Evandro Chagas – the reference laboratory of the Ministry of
health.

At the time, the child’s case was reported and investigated by the Arbovirus Neuroinvasive Disease Surveillance Program, by
Tests to detect herpes viruses, enteroviruses, and various mosquito-borne viruses – including dengue, Zika, chikungunya and Nile fever
western. The Zoonoses Department of Teresina Municipality has initiated the capture of mosquitoes at home and in the vicinity of a sick child, in order to
Identify the species involved and attempt to detect and isolate the virus.

This is the tenth human case of West Nile fever diagnosed through this program in Teresina – started in 2013. Until then, nine more cases had already been diagnosed in the capital: eight residents of other municipalities in Piauí and only one in Teresina (Appendix ) . The entire hospital network (public and
Private) in the capital is qualified and qualified to conduct the epidemiological investigation of cases of meningitis, encephalitis, myelitis and endocrinitis
(Guillain-Barré syndrome) of unknown cause. In the first half of 2022, 78 cases of invasive neurological syndrome were reported.
Of these, 35 were investigated, infections associated with at least one arthropod virus, including: Dengue, Zika, Chikungunya, and Urobosch. These data reinforce that, in addition to the hemorrhagic syndromes caused by dengue and severe joint weakness caused by chikungunya, mosquito-borne viruses can seriously damage the nervous system of patients.

Therefore, it is necessary to strengthen protection measures, avoiding mosquito breeding sites in homes, and in the case of more
weak, avoid exposure to mosquitoes at the times when they are most active (early morning and late afternoon/early evening), using
Appropriate clothing for outdoor activities and proper use of insect repellents

Lina Vera de Oliveira Aragon
Health Monitoring Manager (alternate) – FMS

Barbara Rodriguez
[email protected]

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