Questão 60e2d9c7-97
Prova:USP 2015
Disciplina:Inglês
Assunto:Interpretação de texto | Reading comprehension
Segundo o texto, a bactéria Wolbachia, se inoculada nos mosquitos, bloqueia a transmissão da dengue porque
Segundo o texto, a bactéria Wolbachia, se inoculada nos mosquitos, bloqueia a transmissão da dengue porque
About half of the world's population is at risk of contracting dengue, according to the World Health Organization. The mosquito is found in tropical and subtropical climates around the world; however, dengue does not naturally occur in these creatures: the mosquitoes get dengue from us.
The mechanism of dengue infection is simple. Female mosquitoes bite humans because they need the protein found in our blood to produce eggs. (Male mosquitoes do not bite.) Ifthe mosquito bites someone with dengue - and then, after the virus's roughly eight- to 12-day replication period, bites someone else - it passes dengue into its next victim's bloodstream.
There is no vaccine against dengue, but infecting mosquitoes with a natural bacterium called Wolbachia blocks the insects' ability to pass the disease to humans. The microbe spreads among both male and female mosquitoes: infected females lay eggs that harbor the bacterium, and when Wolbachia-free females mate with infected males, their eggs simply do not hatch. Researchers are now releasing Wolbachia infected females into the wild in Australia, Vietnam, Indonesia and Brazil.
Scientific American, June 2015, Adaptado.
About half of the world's population is at risk of contracting dengue, according to the World Health Organization. The mosquito is found in tropical and subtropical climates around the world; however, dengue does not naturally occur in these creatures: the mosquitoes get dengue from us.
The mechanism of dengue infection is simple. Female mosquitoes bite humans because they need the protein found in our blood to produce eggs. (Male mosquitoes do not bite.) Ifthe mosquito bites someone with dengue - and then, after the virus's roughly eight- to 12-day replication period, bites someone else - it passes dengue into its next victim's bloodstream.
There is no vaccine against dengue, but infecting mosquitoes with a natural bacterium called Wolbachia blocks the insects' ability to pass the disease to humans. The microbe spreads among both male and female mosquitoes: infected females lay eggs that harbor the bacterium, and when Wolbachia-free females mate with infected males, their eggs simply do not hatch. Researchers are now releasing Wolbachia infected females into the wild in Australia, Vietnam, Indonesia and Brazil.
Scientific American, June 2015, Adaptado.
A
torna os machos estéreis.
B
interfere no período de acasalamento dos mosquitos.
C
impede a multiplicação do vírus nas fêmeas.
D
impede a eclosão dos ovos que contêm o vírus.
E
diminui a quantidade de ovos depositados pelas fêmeas.
Gabarito comentado
![](https://vali.qconcursos.com/odin/users/avatars/eb6edaa0-2f5c-4b91-b793-e649a12a1a25avatar-qgq62e.png)
Silvana FariaMestre em Educação pela Universidade Federal de Lavras (UFLA) e Professora de Inglês
"Não existe vacina contra a dengue, mas infectando mosquitos com uma bactéria natural chamada Wolbachia, pode se bloquear a habilidade dos insetos de transmitir a doença aos seres humanos.... -com machos infectados, seus ovos simplesmente não chocam."
"There is no vaccine against dengue, but infecting mosquitoes with a natural bacterium called Wolbachia blocks the insects' ability to pass the disease to humans... - with infected males, their eggs simply do not hatch."
"There is no vaccine against dengue, but infecting mosquitoes with a natural bacterium called Wolbachia blocks the insects' ability to pass the disease to humans... - with infected males, their eggs simply do not hatch."
Conforme trecho traduzido do terceiro parágrafo, podemos inferir que a alternativa D está correta.