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Typhoid vaccines are vaccines that prevent typhoid fever. [1] [2] [3] Several types are widely available: typhoid conjugate vaccine (TCV), Ty21a (a live oral vaccine) and Vi capsular polysaccharide vaccine (ViPS) (an injectable subunit vaccine). They are about 30 to 70% effective in the first two years, depending on the specific vaccine in ...
Although vaccination programs for typhoid have proven effective, they alone cannot eliminate typhoid fever. [39] Combining vaccines with public health efforts is the only proven way to control this disease. [39] Since the 1990s, the WHO has recommended two typhoid fever vaccines. The ViPS vaccine is given by injection and the Ty21a by capsules.
The Vi capsular polysaccharide vaccine (or ViCPS) is a typhoid vaccine recommended by the World Health Organization for the prevention of typhoid (another is Ty21a).The vaccine was first licensed in the US in 1994 and is made from the purified Vi capsular polysaccharide from the Ty2 Salmonella Typhi strain; it is a subunit vaccine.
Ty21a is a live attenuated bacterial vaccine that protects against typhoid.First licensed in Europe in 1983 and in the United States in 1989, it is an orally administered, live-attenuated Ty2 strain of S. Typhi in which multiple genes, including the genes responsible for the production of Vi, have been deleted so as to render it harmless but nevertheless immunogenic.
Typhoid fever is caused by the bacterium Salmonella enterica Serovar Typhi. [37] In Canada alone, the typhus epidemic of 1847 killed more than 20,000 people from 1847 to 1848, mainly Irish immigrants in fever sheds and other forms of quarantine, who had contracted the disease aboard the crowded coffin ships in fleeing the Great Irish Famine ...
Hepatitis A and typhoid vaccine is a combination vaccine to protect against the infectious diseases hepatitis A and typhoid. It is a combination of inactivated Hepatitis A virus and Vi polysaccharide of Salmonella typhi bacteria.
In 2018, World Health Organization recommended the use of the typhoid conjugate vaccine [8] which may be more effective and prevents typhoid fever in many children under the age of five years. [9] In 2021, Soberana 02, a conjugate COVID-19 vaccine developed in Cuba, was given emergency use authorisation in Cuba and Iran. [10] [11]
Vaccine Detail Image DTaP and DTaP combination containing inactivated polio vaccine (IPV) or hepatitis B: Dengue vaccine: HPV vaccine: Malaria vaccine: MMR vaccine: Pneumococcal conjugate vaccine: polio (inactivated) (IPV) Polio vaccine: Rabies vaccine: Rotavirus vaccine: Typhoid vaccine: Yellow fever vaccine