This effort will help address the task of responding to a pandemic. .. Chiron initiates Phase We/II research of an investigational cell culture-derived influenza vaccine Chiron Corporation has announced that it has initiated a Phase We/II study of an investigational cell culture-derived influenza vaccine in the United States. Cell culture-derived influenza vaccine represents the next era of influenza vaccine, both for annual vaccine production and for long-term pandemic preparedness. Creation of influenza vaccine using cell-culture technology may give significant advantages over traditional manufacturing methods through the elimination of the dependence on poultry eggs for production.Flu vaccinations are recommended for everyone who is six months of age or older. Symptoms of flu consist of fever, chills, cough, sore throat, runny or stuffy nose, muscle aches, head aches, fatigue and vomiting and diarrhea, which is commonly more common in children than adults. Most healthful adults may be able to infect others beginning one day before symptoms develop or more to a week after becoming sick, based on the CDC. Some people, especially young children and those with weakened immune systems, could probably infect others for an much longer time even.