Leia o texto para responder às questões de 24 a 30 Prescriptions for fighting epidemics Epidemics have plagued humanity since the daw settled life. Yet, success in conquering them rema Experts predict that a global one that could kill million people would come round in the next 20 to What pathogen would cause it is anybody’s guess. C are that it will be a virus that lurks in birds or one that that has not yet hatched. The scariest ar lethal and spread easily among humans. Thankfully, excel at the first tend to be weak at the other. B – ordinary business for germs – can change that in Moreover, when humans get too close to beasts, eit wild or packed in farms, an animal disease can bec human one. A front-runner for global pandemics is the se influenza virus, which mutates so much that a vacc be custom-made every year. The Spanish flu pandemi 1918, which killed 50 million to 100 million peopl potent version of the “swine flu” that emerged in H5N1 “avian flu” strain, deadly in 60% of cases, c in the 1990s when a virus that sickened birds made to a human. Ebola, HIV and Zika took a similar rou (www.economist.com, 08.02 De acordo com o segundo parágrafo,

1. A)o vírus H5N1 é uma mutação do vírus HIV.
2. B)o vírus influenza possui comportamento sazonal é capaz de se espalhar pelos continentes.
3. C)a gripe suína de 2009 foi muito mais letal que espanhola de 1918.
4. D)os vírus Ebola, HIV e Zika passaram a contamin seres humanos.GABARITO
5. E)um vírus só é considerado perigoso se sua leta superar 60% dos casos de contaminação.