The virus would need to be isolated from infected patients, packaged up and then sent to a facility where scientists would inject the virus into chicken eggs, and incubate those chicken eggs for several weeks in order to prepare the virus for the start of a multistep, multimonth flu vaccine manufacturing process.
Había que illar o virus de pacientes infectados, envasalo e envialo a un laboratorio, onde os científicos inxectarían o virus en ovos de galiña e incubaríanos durante varias semanas para preparar o virus e poder dar inicio  a un proceso de numerosas etapas de elaboración da vacina que levaría varios meses.