Newcomer Mosquito invasion in BA

[Vince]

I

I heard it's also very cold in Buenos Aires now. I'm glad I didn't go down there this month. My friend told me it's supposed to be the coldest temperatures in many years. Hopefully this will kill all those mosquitos!

So much for global warming!

 

[Jenn]

Yikes I just read there were 5,000 deaths in Brazil.

Brazil: Over 5,000 deaths from dengue fever reported in 2024

Brazilian authorities issued a bulletin attesting to 5,008 deaths due to dengue fever so far this year, Agencia Brasil reported. The total number was around fourfold that of the same period last year when 1,179 casualties were recorded. In addition, 2,137 deaths are still under investigation to...

en.mercopress.com

 

[CecilM]

Get ready to battle dengue; it looks like the mosquito won’t give us a break. Scientists say the mosquito has genetically mutated into an even more resistant species, even against fumigation. Authorities are already on alert as temperatures start to rise in September.

Identifican una mutación genética en el mosquito del dengue que lo hace hasta 10 veces más resistente a la fumigación

Científicos argentinos del Conicet descubrieron la alteración de un gen en el Aedes aegypti. El grupo de trabajo investiga sobre opciones de insecticidas más eficaces

www.infobae.com

 

[Jenn]

Oh joy! Doesn't sound like this year will be any better.

Argentine university says dengue-carrying mosquito more resistant to insecticides

A study by the Argentine University of La Plata's Insect Neurobiology Laboratory released this week detected that certain mutations of the dengue-causing aedes aegypti mosquito is more resistant to insecticides than previously thought. The research was focused on the type of insect dominant in...

en.mercopress.com

 

[Pink Panther]

Bad news.

This says early circulation of dengue in the central region of Argentina, particularly in Córdoba, with concerns about a new strain. The Ministry of Health confirmed local cases of dengue, which is unusual for this time of year. Two young women were diagnosed on October 15, and there is also one imported case of the DEN-4 serotype.

This early detection suggests that the virus, transmitted by the Aedes aegypti mosquito, is circulating a month earlier than during last year's unprecedented epidemic.In Buenos Aires, only one imported case has been confirmed, while two have been reported in the province. As of October 5, 2024, Argentina reported over 756,000 cases, with 188,024 confirmed by laboratory tests.

The outbreak has severely impacted the central and northern provinces. Additionally, a new serotype has emerged in Argentina, introduced by a tourist returning from Cuba, where there is a significant dengue outbreak. This serotype had not been seen since 2019 and disappeared in 2022.

The presence of this new strain adds uncertainty to the health scenario because the effectiveness of the Qdenga vaccine against DEN-3 and DEN-4 remains under study. The National Meteorological Service forecasts increased temperatures and rainfall, which could facilitate mosquito proliferation.

Alerta dengue: ya circula en una región del país antes de lo previsto y preocupa una nueva cepa

Confirmaron la existencia de dengue autóctono en la zona centro. Por otro lado, se detectó una variante que no había sido registrada en la epidemia récord de 2023-24.

www.lanueva.com

 

[legend]

Please don’t kill the mosquitoes with green or orange fluorescent pigment! 🤣. They’re sterile mosquitoes created for a biological project aimed at combating dengue.