By Sibel Tinar, Senior Contributing Reporter
RIO DE JANEIRO, BRAZIL – A fever has been sweeping across Rio de Janeiro since early January, building as the city enters the final stretch leading up to the actual Carnival weekend. Now the "blocos", 424 different Carnival Samba bands approved by the city to parade on the streets this year, have been increasing in frequency and fervor.
Each Carnival bloco is allowed one to three scheduled parades on the streets of Rio per year, concentrated around the official . . .