Mazatlan Dengue Risk Increases With Rains


There are several colonies with high density of the transmitting fly, they ask the population to discard patios

Mazatlan, Sinaloa.- In making a call to the population to clean their patios, at the risk of an increase in the reproduction of the mosquito that transmits dengue, the head of Vectors and Zoonoses in Mazatlan, Víctor Arredondo Rojas, reported that several colonies they present high density of Aedes Aegypti, among them the Díaz Ordaz, Mazatlán I, Constitución, Morelos, Olímpica, Juárez, La Montuosa, the Center, Pueblo Nuevo and the Sánchez Celis.

He said that in these areas about 20 homes are worked weekly around the ovitrap, which register high levels, thermal spraying of three blocks is done and 30 more blocks are ordered to be fumigated from the surroundings.

He commented that except for the registration of eight confirmed cases during the first two months of the year and that have to do with the remainder of 2019, there is no report of any confirmed case in the last four months, of 12 probable cases from March to date; However, he said that in the rainy seasons the risk of a dengue outbreak increases.

He indicated that the lack of confirmed cases may also be due to the fact that people are afraid to go to hospitals because of the risk of getting Covid-19, and they prefer to attend private or similar medical offices.

We are doing well, but we have a risk, the rains, it is important that the population helps us by preventing objects from accumulating in the yard with rainwater, interrupting the development of the mosquito by washing the water tanks once a week, and in In the case of vases, we ask you to wash them every third day, minimum 

Victor Arredondo Rojas

He commented that due to the pandemic the ovitrap was withdrawn at the beginning of the year, but since a month ago they were placed in 1,916 sites in the city.

Ovitrap is in the colonies that have historically presented problems with dengue cases, including Juárez, Downtown, Montuosa, Estero, Sánchez Celis, Francisco Villa, Infonavit Playas, Salvador Allende and Flores Magón, among others.

He reported that since then a high population of mosquitoes have been reported by Díaz Ordaz, Mazatlán I, Constitución, Morelos, Olímpica, Juárez, La Montuosa, Centro, Pueblo Nuevo and Sánchez Celis.

These ovitrapies, week by week give us the red spots where the number of mosquitoes is increasing since in these the females deposit the eggs and our staff counts them and in this case, we see which are the highest and we work them by spraying thermal

Victor Arredondo Rojas

He added that each week they work in 20 homes, which are heat sprayed around three blocks from the site, and they are sent to spray the area with vans, to cover approximately 30 blocks around the high ovitrap.

He clarified that at the moment larvicide is not being applied in the warehouses, because the personnel is not authorized to enter homes as a preventive measure against Covid-19, since they could be carriers of the virus.

We are waiting until the month of August, when we are authorized, that the epidemiological curve of Covid-19 will go down a little, and then we can go to homes and give the product in the hands of the people, giving a Good explanation

Victor Arredondo Rojas


1,916 ovitrap traps are located in areas of Mazatlán that historically have presented high density of the dengue vector mosquito.


In the places with high density of the vector fly, thermal spraying and fumigation are carried out around 3 and 30 blocks, respectively.


The Mazatlan Post