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Mycobacterium tuberculosis (Mtb), the bacterial cause of tuberculosis, is a leading infectious agent worldwide. The development of a new vaccine against Mtb is essential to control global spread of tuberculosis, since the current vaccine BCG is not very effective and antibiotic resistance is a serious, burgeoning problem. ESAT-6 is a secreted protein of Mtb, which is absent in BCG but has been implicated...
Despite the licensure of the pneumococcal conjugate vaccine (PCV) in the US and other Western countries for over 14 years, as of September 2014 only 4 South Asian countries were using PCV in their universal immunization program. To generate momentum toward addressing this issue a “South Asia symposium on pneumococcal disease and the promise of vaccines” was organized just prior to the 9th international...
Hepatitis C virus (HCV) leads to chronic infection in the majority of infected patients presumably due to failure or inefficiency of the immune responses generated. Both antibody and cellular immune responses have been suggested to be important in viral clearance. Non-replicative adenoviral vectors expressing antigens of interest are considered as attractive vaccine vectors for a number of pathogens...
Antibody persistence in children following three doses of primary vaccination with diphtheria, tetanus, whole-cell-pertussis (DTwP), hepatitis B, and Haemophilus influenzae type b (Hib) vaccines (SIIL Pentavac vaccine vs. Easyfive ® of Panacea Biotec), and response to the booster dose of DTwP–Hib (Quadrovax ® ) vaccine.Children who completed their primary immunization were assessed...
Reactions to DTwP vaccine are well known and are a matter of great concern, much for the development of next generation combination vaccines. To avoid such reactions which occur from foreign compounds, WHO suggested manufacture of DTwP vaccine using semi-synthetic medium. The phase III trial reported here was conducted to assess the immunogenicity, tolerability and safety of a new DTwP vaccine manufactured...
A distinguishing feature of HCV is its ability to persist in majority of the infected people. We investigated the role of HCV-core and NS3 in inducing effector T cells to mediate antiviral immunity. Our studies revealed that immunization with recombinant adenoviral vector containing HCV-core or NS3 leads to differential development of regulatory vs. effector T cells in mice, resulting in distinct...
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