2023-11-07 22:25:38
07/11/23
Low immunity to serotype 3, approaching rainy season: coping with the dengue epidemic
Several management measures are under discussion, while the dengue epidemic could intensify with the expected return of rain. A first assessment of the “Dengue sans ordo” system, deployed in Kourou in June, was drawn up last week. Screening remains essential to be able to implement management measures adapted to the territory and remind patients of the individual measures to adopt. For All Saints’ Day, ARS and CTG agents also went to cemeteries to remind people of good reflexes to avoid the formation of larval breeding sites.
With 1,599 confirmed cases since the start of the year and while the last few months have been particularly dry, Guyana is experiencing high dengue activity. During the last epidemic, between the end of January 2020 and mid-June 2021, 6,195 probable or confirmed cases were identified, certainly in a particular context since the Covid-19 epidemic began. While the rainy season is expected to return in the coming weeks, Public Health France recalls that the DEN-3 serotype, at the origin of almost all infections this year, “was not at the origin of an epidemic in Guyana for twenty years, which implies low immunity of the population and raises fears of a large-scale epidemic.
Several management measures are under discussion, in anticipation of an increase in contamination. An initial assessment of the “Dengue sans ordo” operation, carried out in June in Kourou, was also drawn up. As a reminder, throughout this month, it was possible to screen for dengue fever in the space city’s laboratories without a doctor’s prescription. The objectives were to make it possible to be screened when they would not have done so if it had been necessary to consult, to detect cases as early as possible to anticipate the associated health management and to allow people to be diagnosed more quickly. early so that they implement appropriate individual management measures such as using repellent products or sleeping under a mosquito net.
People who carried out screening in the Kourou laboratories in June were invited to complete a questionnaire in order to evaluate the system. In total, 228 questionnaires were usable. Among respondents, 77% indicated that they had been tested without a prescription. Although this does not make it possible to definitively validate the relevance of the system, the rate of screenings in Kourou was significantly increasing during this period. Among those who presented themselves with a prescription, some indicated that they were aware of the device but preferred to consult a doctor all the same. Those who opted for “Dengue without prescription” highlighted the simplicity of the system and the excessively long appointment times with the doctor.
With or without a prescription, screening is essential both for the implementation of management measures across the affected territories and to remind patients of the reflexes to adopt when infected. In his last epidemiological update released last week, Public Health France recalls the symptoms of dengue fever and their progression: the febrile phase from D1 to D4, the critical phase from D4 to D7 and the recovery phase. Any person feeling ill and presenting symptoms such as a fever above 38.5° associated with headaches and intense myalgia should immediately contact their doctor or hospital, where dengue fever will be looked for as soon as symptoms appear. first signs.
Any clinically suggestive picture of dengue must be the subject of biological research:
By RT-PCR from D1 to D7 following the start date of the signs; By serology from D5 Indicate the start date of symptoms on the prescription.
For its part, the local authority’s mosquito control service has started spreading operations in Saint-Laurent du Maroni. The CTG announced that it would carry out 3,791 home visits and 246 sweeping operations each month, on average.
Several management measures are under discussion, while the dengue epidemic could intensify with the expected return of rain. A first assessment of the “Dengue without ordo” system, deployed in Kourou in June, was drawn up last week. Screening remains essential to be able to implement management measures adapted to the territory and remind provide patients with individual measures to adopt. For All Saints’ Day, ARS and CTG agents also went to cemeteries to remind people of good reflexes to avoid the formation of larval breeding sites
With 1,599 confirmed cases since the start of the year and while the last few months have been particularly dry, Guyana is experiencing high dengue activity. During the last epidemic, between the end of January 2020 and mid-June 2021, 6,195 probable or confirmed cases were identified, certainly in a particular context since the Covid-19 epidemic began. While the rainy season is expected to return in the coming weeks, Public Health France recalls that the DEN-3 serotype, at the origin of almost all infections this year, “has not been “origin of an epidemic in Guyana for twenty years, which implies low immunity of the population and raises fears of a large-scale epidemic.”
Several management measures are under discussion, in anticipation of an increase in contamination. An initial assessment of the “Dengue sans ordo” operation, carried out in June in Kourou, was also drawn up. As a reminder, throughout this month, it was possible to screen for dengue fever in the space city’s laboratories without a doctor’s prescription. The objectives were to make it possible to be screened when they would not have done so if it had been necessary to consult, to detect cases as early as possible to anticipate the associated health management and to allow people to be diagnosed more quickly. early so that they implement appropriate individual management measures such as using repellent products or sleeping under a mosquito net.
People who carried out screening in the Kourou laboratories in June were invited to complete a questionnaire, in order to evaluate the system. In total, 228 questionnaires were usable. Among respondents, 77% indicated that they had been tested without a prescription. Although this does not make it possible to definitively validate the relevance of the system, the rate of screenings in Kourou was significantly increasing during this period. Among those who presented themselves with a prescription, some indicated that they were aware of the device but preferred to consult a doctor all the same. Those who opted for “Dengue without prescription” highlighted the simplicity of the system and the lengthy appointment times with the doctor.
With or without a prescription, screening is essential both for the implementation of management measures at the scale of the affected territories and to remind patients of the reflexes to adopt when the we are infected. In its latest epidemiological update released this week last, Public Health France recalls the symptoms of dengue fever and their evolution: the febrile phase from D1 to D4, the critical phase from D4 to D7 and the recovery phase. Any person feeling ill and presenting symptoms such as a fever above 38.5° associated with headaches and intense myalgia should immediately contact their doctor or hospital, where dengue fever will be looked for as soon as symptoms appear. first signs.
Any picture clinically suggestive of dengue fever must be the subject of biological research:
By RT-PCR from D1 to D7 following the start date of the signs;
By serology from D5
Indicate the date symptoms started on the prescription.
For its part, the mosquito control service of the Territorial Collectivity has started spraying actions in Saint-Laurent du Maroni. The CTG announced that it would carry out 3,791 home visits and 246 sweeping operations each month, on average.
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