CHILE CAMPAIGNS AGAINST HUNTA VIRUS

(Sept. 27, 2005) Chilean health officials are beginning their seasonal campaign this weekend to educate the public about the risks of Hanta virus, an infection contracted by contact with rodent feces that accumulate in closed spaces over the winter.

Chilean health officials take the threat very seriously because the virus is fatal in 30 percent of cases. There have been 46 confirmed cases of Hanta virus this year, 14 of them were fatal. Officials normally expect to see infection rates like this in October, but because of the large number of people infected with the virus so far this year, officials are launching their campaign to educate the public earlier than normal.

Symptoms of the virus are similar to the flu, with onset usually occurring two to three weeks after exposure. They include high fever, headache, and muscle aches, mostly in the thighs, hips, back and shoulders. If the virus is not treated promptly, the symptoms may worsen causing breathing difficulties, abdominal pain, nausea, and vomiting. If left untreated, the virus can be fatal.

The virus is most prevalent among agricultural workers and foresters but can affect anyone that goes into closed areas, such as cabins or camping shelters that have not been properly aired out after the winter season.

The regions with the highest prevalence rates are Aysén, Maule, Los Lagos, and Bíobío. These rural areas have higher rates of infection because of the large number of summer homes and cabins located in these regions that have to be reopened every year to prepare for the beginning of the tourist season.

Infection can occur after contact with rodent urine, saliva, or after being bitten by a rodent. The most common way of being infected is by breathing in the contagion on dust particles that are stirred up by moving around in buildings that were closed over the winter.

People should wear face masks and gloves when reopening closed buildings and allow rooms to air out for at least an hour before reentering them. Spay down all surfaces with disinfectant or bleach and steam clean any rugs or carpets that may have been contaminated.

If you think you have may have been infected with the virus seek medical attention immediately.