Tuesday , January 19 2021

The less fierce dengue epidemic

Finally, good news in this context of a health crisis. If the dengue epidemic continues in the archipelago, surveillance indicators have been declining since late October, even if they remain at high values.

There has been a reduction in the number of clinical cases of dengue over the last four weeks: an average of 845 cases per week compared to 1,025 cases over the previous four weeks, ie an 18% reduction in the number of cases. Despite this trend, these values ​​remain very high compared to the seasonal threshold.

Since the beginning of the epidemic, there have been an estimated 20,430 clinically suggestive dengue cases in town medicine. The predominantly circulating serotype remains serotype 2, with serotype 1 co-circulation.

Four boroughs heavily affected

In the last four weeks, nearly 3,380 clinically suggestive dengue cases have been seen by a GP. In Grande-Terre, four boroughs are still severely affected by the circulation of dengue fever, and their cumulative incidence is the highest (estimated over 100 cases per 10,000 inhabitants): Saint-François (270), Le Gosier (164), Moule (111) and Les Abymes (101).

On Basse-Terre, the town of Petit Bourg has the highest prevalence rate in Guadeloupe (284) and traffic continues to be very active in residents of Vieux (244) and Terre-de-Haut (202).

Five municipalities with a sentinel physician have not reported any cases of dengue over the past four weeks: Pointe Noire, Baie-Mahault, La Désirade, SaintLouis and Capesterre de Marie-Galante.

In the other municipalities in the archipelago, the clinical incidence of dengue fever per 10,000 inhabitants ranges between 10 (Terre-de-Bas) and 91 (Lamentin).

Only one death and half the number of ER visits

The number of weekly visits to emergency rooms for suspected dengue fever has halved over the last three weeks (about 35 visits). After a peak observed in late October, the trend is downward, but at still high values. This dynamic seen in the hospital is similar to that seen in the city. Last week saw 38 pieces including 8 followed by hospitalization and 34% involving the under 15s.

Since the outbreak of the epidemic, 957 emergency room visits have been recorded with 39.2% of under 15s, 42.5% of 16-44 year olds, 15% of 45-64 year olds and 5.1% of over 65s. Among these fragments, 176 were hospitalized (18.4%).

Since the start of serious case and death surveillance, used in 2019, only one death has been assessed by clinicians in the CHBT as being directly linked to dengue. He was registered last month, as well as a serious case in hospital in intensive care at the CHU de Guadeloupe at the beginning of the month.

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