August 19, 2013 -- Intense scrutiny has accompanied the introduction of pentavalent vaccines throughout Asia. Sri Lanka, Bhutan and Vietnam temporarily suspended their use following adverse events. Now India is running a study to assess the safety of the vaccine.
India has administered pentavalent vaccines to protect against diphtheria, pertussis, tetanus, hepatitis B and haemophilus influenza type B since 2011, but criticisms of the jab have intensified in recent weeks. Last month The Indian Journal of Medical Ethics criticized the World Health Organization (WHO) for continuing to promote the vaccine despite reports of serious adverse events occurring following immunization. The WHO maintains the vaccine is safe, effective and provides tremendous public health benefits.