Acta Scientific Microbiology (ASMI) (ISSN: 2581-3226)

Short Communication Volume 3 Issue 2

Development of Novel Childhood and Adult Tuberculosis Vaccines

Attapon Cheepsattayakorn1* and Ruangrong Cheepsattayakorn2

110th Zonal Tuberculosis and Chest Disease Center, Chiang Mai, Thailand

2Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand

*Corresponding Author: Attapon Cheepsattayakorn, 110th Zonal Tuberculosis and Chest Disease Center, Chiang Mai, Thailand.

Received: December 16, 2019; Published: January 08, 2020


  Approximately, one-third of the world’s population are infected with Mycobacterium tuberculosis (M.tb.). In 2017, an estimated 558,000 persons developed drug-resistant tuberculosis (DR-TB), 82% of which were multidrug-resistant tuberculosis (MDR-TB); and 230,000 deaths were caused by drug-resistant TB disease. Tuberculosis (TB) causes substantial economic burden in addition to enormous human suffering and one of the major drivers of global inequity. Bacille Calmette-Gue΄rin (BCG), an attenuated strain of Mycobacterium bovis that the loss of virulence of this strain is caused by the deletion of the RD-1 locus that encodes nine genes including a 6-kDa early secreted-antigen (ESTAT-6) and a 10-kDA cultured filtered protein (CFP-10). Both are proteins secreted by the Snm secretion system and are considered essential virulence factors leading to M.tb. pathogenesis, demonstrating that they may be good vaccine targets. Whereas BCG is partially efficacious at protecting infants and young children, it is poorly protective against pulmonary TB adolescents and adult. By 2035, the World Health Organization (WHO) End TB Strategy targets of a 90% reduction in TB incidence and a 95% reduction in TB mortality, this will require a novel vaccine that is effective in adults who have latent M.tb. infection as well as who have not yet been infected with M.tb. Vaccines also offer the best chance to contain the accelerating spread of multidrug-resistant TB. Currently, the TB vaccine candidate pipeline incorporates various vaccine platforms including vectored subunit vaccines, adjuvanted proteins, and whole cell vaccines. The TB vaccine candidates are being developed for early life immunization as BCG replacement, as BCG boosters, prevention of TB in adolescents and adults, as immunotherapeutic adjuncts to drug therapy intended to reduce treatment duration, and for vaccination of TB patients after treatment to prevent disease recurrence. The WHO Initiative for Vaccine Research has announced that the development of novel TB vaccines is a priority, based on potential value of WHO involvement, technical feasibility assessment, and a high unmet medical need via PDVAC consultation. The PDVAC also called for the development of a document highlighting WHO preferred Product Characteristics (PPC) for novel TB vaccines.





Citation: Attapon Cheepsattayakorn and Ruangrong Cheepsattayakorn. “Development of Novel Childhood and Adult Tuberculosis Vaccines". Acta Scientific Microbiology 3.2 (2020): 30.


Acceptance rate30%
Acceptance to publication20-30 days

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