There are 144 people sick from infected tick, flea, mite and lice bites
Mazatlán, Sinaloa.- So far this year, 144 cases of Rickettsia have been reported in Sinaloa, a disease caused by bacteria that are transmitted to people through the bites of ticks, mites, fleas or lice that have previously fed on infected animals.
According to the weekly report of the Surveillance of Vector Communicable Diseases of the Secretary of Health of the State of Sinaloa, with cut-off to November 21, in the municipalities of the northern part of the state, 105 cases of rickettsiosis have been accumulated in people, while in the central zone there are 8 and in the south of the state, there are 21 cases.
The municipalities with the most cases are Ahome, which registers 81 cases, El Fuerte with 21, Mazatlán with 11, Choix with 10, Rosario with 8, and Culiacán with 6.
Of the 144 infected people, 117 are women and 27 men, with an incidence rate of 4.56 percent.
Compared to the incidence of previous years, the number of accumulated cases during 2020 is two or three times lower, but unlike years ago, so far this year, the reports are also occurring in the southern area, adding 21 cases: 11 in Mazatlán, 8 in Rosario, 1 in San Ignacio and another in Escuinapa.
In the center of Sinaloa, 8 patients with rickettsiosis have been registered: 6 in Culiacán, 1 in Mocorito, and 1 in Elota.
In the north of the state, the highest number of cases are reported: 81 in Ahome, 21 in El Fuerte, 10 in Choix, and 3 in Guasave.
For his part, the head of the Department of Vectors of Sanitary Jurisdiction No. 6, in the southern part of the state, Víctor Arredondo Rojas, reported that all reported cases of the Health Center have been treated when a case of rickettsiosis is confirmed in a person, as well as those who register in private consultations and services when people speak to them.
He said that an average of 3 to 4 cases per month are reported to the Department of Vectors of this health jurisdiction.
“All those cases that have been reported to us by the Health Center have been attended to when they confirm that there are cases of reckettsiosis, we are going to the homes to make the appropriate spraying to kill what in this case would be fleas or ticks inside the home, both in San Ignacio, Concordia and Mazatlán ”, he expressed.
He indicated that not only official cases are attended, but also reports made by people who go to private medical services.
Rickettsia parkeri infection
Rickettsia parkeri infection is a spotted fever transmitted principally by the Gulf Coast tick (Amblyomma maculatum). Clinical manifestations are similar but relatively less severe than those of Rocky Mountain spotted fever. The disease manifests as a mild febrile illness accompanied by headache, fatigue, myalgias, arthralgias, and a rash consisting of eschars, erythematous papules, and macules. Symptoms occur approximately one week after a tick bite.
The disease is seen where A. maculatum resides, which is predominantly in regions that border the Gulf of Mexico and the Atlantic Ocean. The Gulf Coast tick is also found in some regions of Central America, South America, and the Caribbean. In Uruguay and Argentina, cases have been attributed to Amblyomma triste and Amblyomma tigrinum. In 2014-2015, one confirmed and one probable case were identified in southern Arizona, with transmission attributed to A. triste.
Tick exposure increases with participation in outdoor activities in grassy areas during April through September and contact with household dogs and cats. Many patients will not recall a tick bite, as the bite is typically painless and the body location of the bite may be obscure.
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