An infant (more than three months old) died after receiving an inoculation in the central highlands province of Lam Dong, the local Center of Preventive Health said Friday.
The girl, identified as Ng., received a "five in one" vaccination against diphtheria, pertussis (whooping cough), tetanus, hepatitis, and mumps at around 9 a.m. on Thursday, according to the Tan Lam Commune's health clinic.
Ng turned purple and suffered from respiratory failure that day at home, the center said, stressing that following the vaccination the baby was put under observation for 30 minutes without exhibiting any symptoms at the clinic before going home.
Nguyen Huu Phuc, director of Lam Dong Preventive Health Center, said another 40 kids received the same inoculation at the same time without any adverse reactions.
Representatives from the management boards of the national vaccination program and the vaccination program in the southern region will cooperate with Lam Dong's preventive health center and other related agencies in investigating the death, Phuc said.