Date: Mon 20 May 2019
Source: El Pais [in Spanish, trans. Mod.TY, edited]
Tarija Departmental Health Services (SEDES) reported a new case of hantavirus [infection] in Padcaya municipality. The number of patients with this illness is within what is expected, because this season is when more people acquire the disease. Epidemiological surveillance is continuing in Arce province. The person who acquired this illness is male and is under medical care until his recuperation.
The head of the Epidemiological Unit of SEDES, Claudia Montenegro, stated that the patient is hospitalized in the San Juan de Dios Regional Hospital in Tarija awaiting his recuperation. The physician said that in Bermejo and Padcaya municipalities, the harvest of citrus fruit and sugar cane for production of sugar has begun, so there is a trend for the cases of this illness to increase. This is due to the large number of families that move to the countryside where the rodent (long tail) is present that transmits this disease [virus].
"In contrast to previous seasons, this year , there were positives for this disease in Gran Chaco province, including fatalities," Montenegro commented. "Epidemiological surveillance there is being implemented, as well as in areas such as Padcaya and Bermejo."
The official explained that in these localities, the rodent that transmits the disease [virus] to families is present, and with agricultural activities, [people] move into places where this animal lives, and so new cases of patients with hantavirus [infections] are registered every year.
In order to prevent this illness, it is recommended that rodent control campaigns be done to reduce their populations, openings in houses be sealed, and that residents reduce the possibility for rodents to make nests within a radius of 30 meters [100 ft] around the house, and eliminate items that could attract these animals near the house (food, grain, garbage). Workers should employ protective measures during agricultural tasks and cleaning work.
Initial symptoms include fatigue, fever and muscle pain, especially in the thighs, hips and back. Also, patients may present with headache, dizziness, chills, nausea, vomiting, diarrhea and abdominal pain. [These symptoms may progress rapidly to respiratory difficulty requiring mechanical ventilation (hantavirus cardio pulmonary syndrome). Death can occur. - ProMED Mod.TY]
[The hantavirus involved in the above cases is not mentioned. Cases of hantavirus infections in Tarija department are not new. Tarija department is endemic for hantaviruses, and cases occur there sporadically. Last year (2018), there were 11 cases. The previouslyreported 2015 cases of hantavirus pulmonary syndrome (HPS) that occurred in Tarija department were confirmed. As noted in the previous comments, earlier cases of hantavirus pulmonary syndrome have been reported from tropical, lowland areas of Bolivia, including 7 cases in Tarija during 2014. The specific hantaviruses involved in these or previous cases in Bolivia were not given.
Since previous cases in Tarija department have occurred in Bermejo, perhaps Bermejo hantavirus was involved.
Dr. Jan Clement commented that there is a need to be able to differentiate Seoul (SEOV) as a causative agent, but that is hampered by the fact that most current commercial ELISA or WB formats do not contain (anymore) a SEOV antigen, so that a preliminary presumption of a hantavirus infection can even be missed in non-research laboratories (ibidem, and: Reynes J-M, Carli D, Bour J-B, Boudjeltia S, Dewilde A, Gerbier G, et al. Seoul virus infection in humans, France, 2014-2016. Emerg Infect Dis. 2017;23:973-7; <https://wwwnc.cdc.gov/eid/article/23/6/16-0927_article
SEOV is widely distributed around the world in the brown rat and is likely found in Tarija department. - ProMED Mod.TY]
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