DOH Warns of Increased Dengue Risk With October Rainy Season
Recent and heavy downpours across the territory have made certain areas near the home a haven for mosquito breeding, and residents are reminded to take steps to reduce their risk from dengue fever, according to a press release from the Department of Health Commissioner Julia Sheen.
Historically, October kicks off the rainy season in the Virgin Islands, and coupled with the hurricane season, which does not end until November, residents can expect more of the downpours that were associated with Tropical Storm Otto.
As a result, Environmental Health officers began visiting communities this week that were designated as hot spots for dengue, to treat stagnant pools of water. The method, called larvaeciding, prevents mosquito eggs from hatching and kills the young mosquitoes, also known as larvae. Further, beginning Tuesday, Oct. 19, Environmental Health staff will conduct spraying on the islands of St. John and St. Thomas, which the Department of Health (DOH) has determined is dealing with a dengue outbreak. Mosquito abatement will also be conducted on Water Island.
DOH has increased its previously released scheduled dates for mosquito abatement and will alternately be spraying and fogging areas. Spraying, during daylight hours, is scheduled to begin by 10 a.m. on St. Thomas and by noon on Water Island and St. John. Fogging will occur between 6-9 p.m.
Sheen said that residents will be alerted to any changes in the schedule and cautioned those with compromised immune systems to stay indoors and close windows at the times that the spraying/fogging is being conducted.
Sheen also reminds residents that they are their first protectors against acquiring dengue fever and should frequently empty containers that collect water around their homes. Residents should contact the Environmental Health Division at 773-3107 on St. Croix and 715-5111 in the St. Thomas-St. John district to report stagnant pools of water near their homes and in their communities.
The dengue fever virus is transmitted by the female Aedes Aegypti, which breeds in man-made containers, and residents put themselves at risk if old tires, plant containers, empty drums and even food containers for animals are around the homes where water can collect and provide a breeding ground for the mosquitoes.
"They should monitor those containers and empty them frequently," said Commissioner Sheen.
The following schedule, with increased dates, replaces the scheduled released in September.
Environmental Health Division – Spray/Fogging Schedule -- October
· Tuesday, October 12 - St. Croix - Larvaeciding
· Wednesday, October 13 - St. Thomas - Larvaeciding
· Thursday, October 14 - St. John - Larvaeciding
· Tuesday, October 19 – St. John Cruz Bay/Coral Bay (Spraying- Day)
· Tuesday, October 19 – St. Thomas East/North (Spraying- Day)
· Wednesday, October 20 – Water Island (Spraying-Day)
· Wednesday, October 20 – St. Thomas West/South (Spraying-Day)
· Thursday, October 21 – St. Croix East/North (Spraying- Day)
http://stjohnsource.com/content/news/lo ... iny-season
The link to the US VI Department of Health is
http://www.healthvi.org/
Basic information on Dengue from
http://wwwnc.cdc.gov/travel/yellowbook/ ... fever.aspx
Four immunologically related, single positive-stranded RNA viruses known as dengue viruses (DENV-1 through DENV-4) of the genus Flavivirus, family Flaviviridae, are responsible for causing dengue fever (DF) and dengue hemorrhagic fever (DHF).
Infection with one DENV produces lifelong immunity against reinfection with that one virus and short-term (≤9 months), partial cross-protection against the other three dengue viruses. An individual may be infected up to four times during his or her lifetime.
Transmission occurs from the bite of an infected Aedes aegypti (rarely Aedes albopictus) mosquito. Mosquitoes first become infected with DENV by feeding on the blood of a dengue-infected person. After the virus replicates for 8–12 days in the mosquito, the mosquito can transmit DENV to many other people.
The bite of one infected mosquito can result in infection. The risk of being bitten is highest during the early morning, several hours after daybreak, and in the late afternoon several hours before sunset, because the female mosquito typically feeds (bites) during these hours. However, mosquitoes may feed at any time during the day.
CDC information on mosquito repellents link:
http://www.cdc.gov/ncidod/dvbid/westnil ... ellent.htm
http://www.cdc.gov/ncidod/dvbid/westnil ... pdates.htm