Date: Tue 15 Jan 2019
Source: El Tribuno [in Spanish, trans. ProMED Mod.TY, edited]
The Jujuy provincial minister of health yesterday [Mon 14 Jan 2019] confirmed a hantavirus [infection] case in San Pedro. This is one of the 4 suspected cases evaluated in this Ramallo city and was diagnosed in a 56-year-old patient who is being treated and is progressing well.
This was confirmed for El Tribuno in Jujuy by the subsecretariat for Health Promotion, Prevention, and Attention, Veronica Serra, who stated that there were 4 suspected hantavirus [infection] cases in the province: 3 in the public sector that were negative and one in the private sector that was positive. "Recently, yesterday afternoon, the diagnosis was confirmed for a patient hospitalized in the Santa Maria Clinic in San Pedro, who is being treated and is progressing favourably," the official stated.
She also explained that there is blocking work now, but all epidemiological research will start today [Tue 15 Jan 2019] in the morning.
Serra also remarked that this specific case is different from the type of hantavirus that is circulating in Chubut province and is a milder strain. "The one circulating in Jujuy is a completely different strain [species] than the hantavirus in the south. The transmission of the hantavirus that we have in the province occurs via aspiration of urine of the rodent, not person-to-person as is occurring in the south [See the Chubut comments below. - ProMED Mod.TY]. It is a variant of the disease that is milder as for its transmission," she said.
In Jujuy province last year , 7 cases of hantavirus [infection] were registered, the majority on the Ramal and Valles area. "In 2018 there were 4 cases in Libertador General San Martin, one in San Pedro, one in El Carmen, and the other in Cochinoca department, of which none were fatal; all were treated and progressed favorably."
The health office requests adoption of extreme security measures in order to avoid future cases.
The 1st symptoms are similar to those of flu: high fever, chills, muscular pain, headache, nausea or vomiting, abdominal pain, and diarrhoea, but without upper respiratory tract (cold) symptoms. This mild picture may evolve to cases with severe cardiopulmonary effects.
Some of the recommendations in order to prevent the infection [include]
- Avoid living with rodents and contact with their secretions.
- Avoid entry of rodents and nest-making in houses.
- Close openings in doors, walls, and around pipes.
- Perform cleaning with one part of bleach to 9 parts of water (let stand for 30 minutes and later rinse). Wet the floor before sweeping it in order to not raise dust.
- Ventilate for at least 30 minutes before entering places that have been closed (houses or sheds). Cover the nose and mouth with a damp handkerchief or respiratory mask before entering.
- Take special care when starting up fans or air conditioners whose filters or ducts could have been in contact with [virus] contaminated dust, rodents, or their excreta.
Hantavirus infections represent an emerging zoonosis transmitted to humans by rodents infected with the virus. The natural reservoirs of the infection [virus] are certain wild rodents that have a chronic, asymptomatic infection with persistent viremia and shed the virus in urine, saliva, and excrement.
In Argentina, 2 species of hantaviruses circulate (Andes and Laguna Negra). [This is not correct; there are several more. See comments below. - ProMED Mod.TY].
The hantaviruses are fundamentally transmitted by inhalation of aerosols carrying virus particles coming from feces, urine, and saliva of infected rodents. Other possible routes of transmission are contact of conjunctival, nasal, or oral mucosas with the secretions of infected rodents, or by the bite of an infected rodent. There is evidence for person-to-person transmission (Andes virus, in the south in Epuyen), and because of this, the secretions of human fluids should be considered dangerous.
[This report apparently presumes that the hantavirus involved in this case is Laguna Negra, although it is not stated that this virus has been laboratory confirmed. As noted in ProMED-mail archive no. http://promedmail.org/post/20110430.1348
, several hantaviruses have been associated with human infection and hantavirus pulmonary syndrome in Argentina: Andes virus (western Argentina, in the long-tailed pygmy rice rat host, _Oligoryzomys longicaudatus_); related Andes-like viruses Hu39694 (in central Argentina; rodent host unknown); Lechiguana (in central Argentina in the yellow pygmy rice rat, _O. flavescens_); Oran (in northwestern Argentina in _O. longicaudatus_); Bermejo (western Argentina in _O. flavescens_); and Laguna Negra (in northern Argentina in _Calomys laucha_).
Without laboratory confirmation, it is not possible to say with certainty which hantavirus was involved. Andes virus seems unlikely in this case. - ProMED Mod. TY]