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France Gov Reading of Cases Week 27
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EPIDEMIC OF CHIKUNGUNYA
At La Réunion Island and the Indian Ocean
Situation
On July 13, 2006 The monitoring is based on a network of doctors sentinels which makes it possible to follow the tendencies of the epidemic as well as possible.
Since the beginning of the epidemic (March 2005), 4046 cases were notified by the doctors of the network sentinel of the island of the Meeting, including 2 during week 27 of 2006.
An estimate starting from a mathematical model, based on the historical series, makes it possible to evaluate the total number of cases of Chikungunya since the beginning of the epidemic with a little more than 266 000 that id 1 person out of 3.
This number corresponds on the whole of the people having presented, to one moment or another since March 2005, a clinical form of the disease, which they or not consulted a doctor.
It does not correspond to the number of currently sick people.
The same mathematical model makes it possible to again estimate at 130 the number cases which have occurred in the week from the 3 to July 9, 2006.
After having reached a peak at the time of the week from the 6 to February 12, the weekly number of cases then strongly fell until mid-March. Since, the reduction continued and is confirmed in week 27.
The evolution of the epidemic remains unforeseeable because of unexpected climatic events which can contribute to modify the ecology of the mosquito vector of the disease.
Currently, the number of the highest case is announced in the communes of Saint-Paul and Saint-Denis. This information must however be interpreted with precaution because it depends on the level of participation of the doctors in the monitoring system, variable according to communes'. Serious and atypical forms No new serious form was announced in week 27.
On the whole, since the beginning of the epidemic, 246 people (1 out of 1 000)with an infection with Chikungunya confirmed biologically had a clinical expression engraves disease (neurological, hepatic forms...) requiring a hospitalization in reanimation.
Moreover, 40 cases of infections materno-néonatales were confirmed biologically at the new ones born from less than 10 days. A death was noted among the latter.
In addition, the doctors announce a risk of decompensation related to the effects of the acute infection on the general state of the vulnerable people, in particular the old people, the new ones born. immuno depressed people, ....
Death Since January 2006, 240 certificates of death in which Chikungunya is mentioned were listed.
The majority of the deaths is recorded at old individuals of more than 68 years, with nearly 75% of the deaths.
The peak of the deaths was located between weeks 7 and 9 of 2006. (Austral Summer)
Situation with Mayotte
Since the beginning of the year, to the date of July 02, 2006, 7090 suspect cases of acute infection in Chikungunya were reported by the doctors to Mayotte, including 35 cases declared having presented the first symptoms during week 25 and 20 cases during week 26. The epidemic seems to mark time since mid-March and in weekend 26, the reduction in the weekly number of declared cases continues except for the two communes for Sada and Chiconi (West coast) where an increase in the number of declared cases is recorded.
If these figures make it possible to follow the tendencies of the epidemic, they do not reflect however its real width of bus of many patients do not have recourse to the medical departments and are thus not entered.
Indeed, a survey recently carried out in the general population by InVS showed that less than half of the questioned people who stated to have presented symptoms compatible with the chikungunya (26% of the sample) had a contact with the services of care ` officiels'. Many of these patients had had recourse to self medication and/or traditional medicine. In Mayotte, at July 02, 2006, no infection materno-néonatale nor no serious form noted among patients of more than 10 days were confirmed in weeks 25 and 26.
As for the emergent forms characterized by a less severe clinical picture, 30 cases of old people of more than 10 days were recorded since the beginning of the epidemic. To date, no certificate of death being marked "Chikungunya" was received by Dass de Mayotte. However, it was brought back the case of a 10 day old child deceased February 2006 of a meningitis bacterial and infected in a concomitant way by the virus of the chikungunya. Situation Internationale the Chikungunya virus circulates in all the Indian Ocean since the beginning of the year 2006. Seychelles (80 000 inhabitants) and Maurice (1,2 million inhabitants) announced several thousands of case between January and March 2006.
The recent data on the epidemic in Seychelles show an important retreat of the number of cases since the mid-February 2006 with a stabilization of the weekly incidence with approximately 30 cases per week. Information indicates that the epidemic is also less intense to Maurice Of the cases were also identified in Madagascar (Toamasina) and the Comoros (Anjouan). The epidemic of chikungunya prevails in India in the States d' Andar Pradesh, of Maharasthra, Karnataka and Nadu Tamil. The most recent estimates going back to May and June 2006 made state of more than 450 000 suspect cases of chikungunya, among which 691 confirmed cases. An epidemic of dengue also prevails in the close States.
An epidemic (200 cases) was announced in Malaysia, concerning the coast of the state of Pérak, in the north of Kuala Lumpur. Measurements of fight To the Meeting, in spite of the fall of the intensity of the epidemic recorded since the mid-February 2006 and of the current period of the southern winter, the transmission of the virus remains active. It is important to recall that this transmission had continued during the southern winter 2005 before increasing brutally with the return of favorable climatic conditions. In order to continue to follow the tendencies of the epidemic, the adaptation of the device of monitoring to the current epidemiologic situation is in the course of setting in?uvre. In this context, it is advisable to recall with force the importance to adopt individual behaviors aiming at protecting itself from the punctures of mosquito and to contribute to the destruction of the larval lodgings.
There is neither vaccine nor preventive treatment against the infection with Chikungunya. Measurements of control thus rest on the coupled efforts of antivectorielle fight and Community fight in order to eliminate the lodgings from mosquitos.
Since the end of the southern winter 2005, measurements of antivectorielle fight were reinforced considerably, but must come in complement from also essential measurements of Community fight. The whole of the population is concerned and must continue the daily actions of destruction of the potential lodgings around the dwellings (stagnant water in the saucers, vases, buckets, refuse...).
Under these conditions, measurements of individual prevention against the punctures of mosquito are very important and must be taken in a daily way: spray and creams, diffusers electric, serpentine, long clothing and mosquito nets...
The pregnant women and the very young children must be the subject of particularly reinforced and adapted measurements.
The mosquito vector pricks especially the day, primarily outside the houses, with a more important activity at the beginning of morning and at the end of the day.
Source: www.invs.sante.fr/presse/2006/le_point_sur/chikungunya_130706/
EPIDEMIC OF CHIKUNGUNYA
At La Réunion Island and the Indian Ocean
Situation
On July 13, 2006 The monitoring is based on a network of doctors sentinels which makes it possible to follow the tendencies of the epidemic as well as possible.
Since the beginning of the epidemic (March 2005), 4046 cases were notified by the doctors of the network sentinel of the island of the Meeting, including 2 during week 27 of 2006.
An estimate starting from a mathematical model, based on the historical series, makes it possible to evaluate the total number of cases of Chikungunya since the beginning of the epidemic with a little more than 266 000 that id 1 person out of 3.
This number corresponds on the whole of the people having presented, to one moment or another since March 2005, a clinical form of the disease, which they or not consulted a doctor.
It does not correspond to the number of currently sick people.
The same mathematical model makes it possible to again estimate at 130 the number cases which have occurred in the week from the 3 to July 9, 2006.
After having reached a peak at the time of the week from the 6 to February 12, the weekly number of cases then strongly fell until mid-March. Since, the reduction continued and is confirmed in week 27.
The evolution of the epidemic remains unforeseeable because of unexpected climatic events which can contribute to modify the ecology of the mosquito vector of the disease.
Currently, the number of the highest case is announced in the communes of Saint-Paul and Saint-Denis. This information must however be interpreted with precaution because it depends on the level of participation of the doctors in the monitoring system, variable according to communes'. Serious and atypical forms No new serious form was announced in week 27.
On the whole, since the beginning of the epidemic, 246 people (1 out of 1 000)with an infection with Chikungunya confirmed biologically had a clinical expression engraves disease (neurological, hepatic forms...) requiring a hospitalization in reanimation.
Moreover, 40 cases of infections materno-néonatales were confirmed biologically at the new ones born from less than 10 days. A death was noted among the latter.
In addition, the doctors announce a risk of decompensation related to the effects of the acute infection on the general state of the vulnerable people, in particular the old people, the new ones born. immuno depressed people, ....
Death Since January 2006, 240 certificates of death in which Chikungunya is mentioned were listed.
The majority of the deaths is recorded at old individuals of more than 68 years, with nearly 75% of the deaths.
The peak of the deaths was located between weeks 7 and 9 of 2006. (Austral Summer)
Situation with Mayotte
Since the beginning of the year, to the date of July 02, 2006, 7090 suspect cases of acute infection in Chikungunya were reported by the doctors to Mayotte, including 35 cases declared having presented the first symptoms during week 25 and 20 cases during week 26. The epidemic seems to mark time since mid-March and in weekend 26, the reduction in the weekly number of declared cases continues except for the two communes for Sada and Chiconi (West coast) where an increase in the number of declared cases is recorded.
If these figures make it possible to follow the tendencies of the epidemic, they do not reflect however its real width of bus of many patients do not have recourse to the medical departments and are thus not entered.
Indeed, a survey recently carried out in the general population by InVS showed that less than half of the questioned people who stated to have presented symptoms compatible with the chikungunya (26% of the sample) had a contact with the services of care ` officiels'. Many of these patients had had recourse to self medication and/or traditional medicine. In Mayotte, at July 02, 2006, no infection materno-néonatale nor no serious form noted among patients of more than 10 days were confirmed in weeks 25 and 26.
As for the emergent forms characterized by a less severe clinical picture, 30 cases of old people of more than 10 days were recorded since the beginning of the epidemic. To date, no certificate of death being marked "Chikungunya" was received by Dass de Mayotte. However, it was brought back the case of a 10 day old child deceased February 2006 of a meningitis bacterial and infected in a concomitant way by the virus of the chikungunya. Situation Internationale the Chikungunya virus circulates in all the Indian Ocean since the beginning of the year 2006. Seychelles (80 000 inhabitants) and Maurice (1,2 million inhabitants) announced several thousands of case between January and March 2006.
The recent data on the epidemic in Seychelles show an important retreat of the number of cases since the mid-February 2006 with a stabilization of the weekly incidence with approximately 30 cases per week. Information indicates that the epidemic is also less intense to Maurice Of the cases were also identified in Madagascar (Toamasina) and the Comoros (Anjouan). The epidemic of chikungunya prevails in India in the States d' Andar Pradesh, of Maharasthra, Karnataka and Nadu Tamil. The most recent estimates going back to May and June 2006 made state of more than 450 000 suspect cases of chikungunya, among which 691 confirmed cases. An epidemic of dengue also prevails in the close States.
An epidemic (200 cases) was announced in Malaysia, concerning the coast of the state of Pérak, in the north of Kuala Lumpur. Measurements of fight To the Meeting, in spite of the fall of the intensity of the epidemic recorded since the mid-February 2006 and of the current period of the southern winter, the transmission of the virus remains active. It is important to recall that this transmission had continued during the southern winter 2005 before increasing brutally with the return of favorable climatic conditions. In order to continue to follow the tendencies of the epidemic, the adaptation of the device of monitoring to the current epidemiologic situation is in the course of setting in?uvre. In this context, it is advisable to recall with force the importance to adopt individual behaviors aiming at protecting itself from the punctures of mosquito and to contribute to the destruction of the larval lodgings.
There is neither vaccine nor preventive treatment against the infection with Chikungunya. Measurements of control thus rest on the coupled efforts of antivectorielle fight and Community fight in order to eliminate the lodgings from mosquitos.
Since the end of the southern winter 2005, measurements of antivectorielle fight were reinforced considerably, but must come in complement from also essential measurements of Community fight. The whole of the population is concerned and must continue the daily actions of destruction of the potential lodgings around the dwellings (stagnant water in the saucers, vases, buckets, refuse...).
Under these conditions, measurements of individual prevention against the punctures of mosquito are very important and must be taken in a daily way: spray and creams, diffusers electric, serpentine, long clothing and mosquito nets...
The pregnant women and the very young children must be the subject of particularly reinforced and adapted measurements.
The mosquito vector pricks especially the day, primarily outside the houses, with a more important activity at the beginning of morning and at the end of the day.
Source: www.invs.sante.fr/presse/2006/le_point_sur/chikungunya_130706/
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