On April 12 , 1955 he announced that his team had developed an effective and safe vaccine.
"No. 1, this is not a safe vaccine," said Dr. Carlos del Rio, chief of medical services at Grady Hospital and a professor of infectious disease.
An effective, safe vaccine protects the individual from disease, whereas chemotherapy merely copes with the infection once the individual has been affected.
"Now a very safe vaccine will totally prevent it from happening," said the lead author, Dr. Roger Baxter, co-director of the Kaiser Permanente Vaccine Study Center in Oakland, Calif.
"It's a very safe vaccine since it contains no viral genetic material," he says.
VRP fulfil the criteria of a safe vaccine and gene delivery system.
Despite the high disease burden, an effective and safe vaccine is lacking, although several candidates are currently in development.
HBsAg-based VLPs constitute a powerful vector for heterologous immunogenic peptides to develop a safe vaccine delivery system.
