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Cholera is an important public health problem worldwide, particularly in endemic areas of the developing world. In 2004, 101 383 cholera cases and 2345 deaths were reported to the WHO. Provision of safe water and food, adequate sanitation and improved personal and community hygiene are the main public health interventions against cholera. These measures cannot be implemented in the near future in the most cholera-endemic areas.
Phase II trials of this reformulated killed oral cholera vaccine were performed in SonLa, Vietnam and Kolkata, India. Significant vibriocidal antibody responses were observed among vaccine recipients.
Distribution of 2 doses of the cholera vaccine is often difficult in field settings and limits its utility in emergency situations, since an interval of 2 weeks is usually required between doses. Recent data from Vietnam suggests that greater vibriocidal responses following 2 doses are elicited compared to previous formulations. Furthermore, in a study in Bangladesh comparing immune responses to the vaccine among children supplemented with vitamin A and zinc, seroconversion after the first dose was robust in all groups suggesting that one dose may be used in the control of cholera.
Data regarding the immune response following one dose of this reformulated vaccine is currently unavailable. If a single dose of this vaccine is confirmed to be immunogenic to recipients, then this vaccine may be used more extensively for public health purposes, especially during times of outbreaks.
The objective of this study is to confirm the safety of the killed oral cholera vaccine among adult and children volunteers.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention
Killed bivalent whole cell oral cholera vaccine, Heat Killed E. coli Placebo
National Institute of Cholera and Enteric Diseases
International Vaccine Institute
Published on BioPortfolio: 2014-08-27T03:40:47-0400
In order to assess whether the bivalent killed oral cholera vaccine may be used safely among infants who are most at risk for cholera, the investigators need to determine the safety and im...
The primary purpose of this study is to estimate the efficacy of a two-dose regimen of the oral killed bivalent cholera vaccine when administered to individual residing in a cholera-endemi...
A study is necessary in order to assess the safety and immunogenicity of the bivalent killed oral cholera vaccine produced in India by Shantha Biotechnics among healthy adult and children ...
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The aim of the study is to generate safety and immunogenicity data with Oral Cholera Vaccine (Shanchol™) in The Philippines Objectives: - To describe the safety after each dos...
The Dominican Republic, historically non-endemic for cholera, is experiencing an ongoing cholera epidemic. We assessed the safety and immunogenicity of two doses of the killed bivalent (O1 and O139) w...
Oral cholera vaccination is an approach to preventing outbreaks in at-risk settings and controlling cholera in endemic settings. However, vaccine-derived herd immunity may be short-lived due to intera...
Anti-O-specific polysaccharide (OSP) immune responses following vaccination with oral cholera vaccine CVD 103-HgR correlate with protection against cholera after infection with wild-type Vibrio cholerae O1 El Tor Inaba in North American volunteers.
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Ring vaccinations create a zone of immune contacts around a case to prevent further disease transmission and have been successfully employed in the eradication of smallpox and the control of other inf...
A live vaccine containing attenuated poliovirus, types I, II, and III, grown in monkey kidney cell tissue culture, used for routine immunization of children against polio. This vaccine induces long-lasting intestinal and humoral immunity. Killed vaccine induces only humoral immunity. Oral poliovirus vaccine should not be administered to immunocompromised individuals or their household contacts. (Dorland, 28th ed)
Vaccines or candidate vaccines used to prevent infection with VIBRIO CHOLERAE. The original cholera vaccine consisted of killed bacteria, but other kinds of vaccines now exist.
A suspension of killed Bordetella pertussis organisms, used for immunization against pertussis (WHOOPING COUGH). It is generally used in a mixture with diphtheria and tetanus toxoids (DTP). There is an acellular pertussis vaccine prepared from the purified antigenic components of Bordetella pertussis, which causes fewer adverse reactions than whole-cell vaccine and, like the whole-cell vaccine, is generally used in a mixture with diphtheria and tetanus toxoids. (From Dorland, 28th ed)
Vaccines used to prevent infection by viruses in the family ORTHOMYXOVIRIDAE. It includes both killed or attenuated vaccines. The composition of the vaccines is changed each year in response to antigenic shifts and changes in prevalence of influenza virus strains. The vaccine is usually bivalent or trivalent, containing one or two INFLUENZAVIRUS A strains and one INFLUENZAVIRUS B strain.
Vaccines used to prevent POLIOMYELITIS. They include inactivated (POLIOVIRUS VACCINE, INACTIVATED) and oral vaccines (POLIOVIRUS VACCINE, ORAL).
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