Four other dengue fever deaths were confirmed in the state on Wednesday. The number of deaths from these diseases in a year reaches 12, the highest number in historical series. The number of cases (so-called autochthons) acquired within the state is also the highest of the year: more than 12,000 cases to date. Prevention must be done by removing places with stagnant water where the spreading mosquito, Aedes aegypti, increases.
The last four deaths occurred in residents of the cities of Novo Hamburg, Sapucaia do Sul, Cachoeira do Sul and Lajeado. Other confirmed deaths occurred in Horizontina (two deaths), Chapada, Cristal do Sul, Igrejinha, Dois Irmãos, Boa Vista do Burica and Jaboticaba. Last year, a total of 11 diseases died in Rio Grande do Sul. In 2020, there were six.
The update of these numbers will come to the State Government Arbovirus Panel to this day. There are currently 442 municipalities in Rio Grande do Sul that are considered to be infested with mosquitoes. This is the largest number of cities in this situation in a historic monitoring series carried out since 2000. The apparent number of cases and the widespread insect prevalence in Rio Grande do Sul are forcing SES to strengthen prevention measures with the population. The main action is the removal of stagnant water sites that serve as points of development for mosquito larvae. This increase occurs more at this time of year, which associates high temperatures with repeated rains.
Aedes aegypti is on average less than 1 cm in size, dark in color and has white streaks on its legs, head and body. The mosquito cycle usually accelerates in the summer due to a combination of warmer temperatures and rainfall. To multiply, it needs places with stagnant water. Therefore, preventing their spread aims to eliminate these potential breeding sites, thus preventing the emergence of mosquitoes.
The most popular containers for storing eggs are household containers with standing water, or even on their wall, even when dry. The most important examples are e.g. rings, cans, glasses, broken bottles, containers, water tanks or other poorly covered tanks.