The CIA World Factbook Every edition, 2005 to 2023 Africa
Major infectious diseases Chad, in 19 editions.
The entry for Chad published Major infectious diseases in 19 editions of 36, from 2005 to 2023. The text changed in 12 editions. Each is shown as published. Major infectious diseases in every entry.
- editions changed the text
- 12
- the first edition with it
- 2005
- the latest edition with it
- 2023
Published as “Major infectious diseases” (2005 to 2023).
field in that editiontext changed from the edition beforenot in that editionthe edition shownChoose an edition on the strip beside the text, or step through them with the arrows. Mark changes compares it with the edition before: the marks are ours, words added and words removed.
2023 edition
Changed since 2022- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
- vectorborne disease:
- malaria
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis (2004)
degree of risk: very high
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
vectorborne disease: malaria
water contact disease: schistosomiasis
respiratory disease: meningococcal meningitis (2004)
- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
- vectorborne disease:
- malaria
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis (2005)
degree of risk: very high
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
vectorborne disease: malaria
water contact disease: schistosomiasis
respiratory disease: meningococcal meningitis (2004) (2005)
- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
- vectorborne disease:
- malaria
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis (2007)
degree of risk: very high
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
vectorborne disease: malaria
water contact disease: schistosomiasis
respiratory disease: meningococcal meningitis (2005) (2007)
- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
- vectorborne disease:
- malaria
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis (2008)
degree of risk: very high
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
vectorborne disease: malaria
water contact disease: schistosomiasis
respiratory disease: meningococcal meningitis (2007) (2008)
The same text in 4 editions, 2009 to 2012.
- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
- vectorborne disease:
- malaria
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis
- animal contact disease:
- rabies (2009)
degree of risk:
very high
food or waterborne diseases:
bacterial and protozoal diarrhea, hepatitis A, and typhoid fever
vectorborne disease:
malaria
water contact disease:
schistosomiasis
respiratory disease:
meningococcal meningitis (2008)
animal contact disease:
rabies (2009)
The same text in 2013 and 2014.
- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis
- animal contact disease:
- rabies (2013)
degree of risk:
very high
food or waterborne diseases:
bacterial and protozoal diarrhea, hepatitis A, A and E, and typhoid fever
vectorborne disease: diseases:
malaria and dengue fever
water contact disease:
schistosomiasis
respiratory disease:
meningococcal meningitis
animal contact disease:
rabies (2009) (2013)
- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis
- animal contact disease:
- rabies (2013)
degree of risk:
food or waterborne diseases:
vectorborne diseases:
water contact disease:
respiratory disease:
animal contact disease:
The same text in 2016 and 2017.
- degree of risk:
- very high
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact disease:
- schistosomiasis
- respiratory disease:
- meningococcal meningitis
- animal contact disease:
- rabies (2016)
degree of risk: very high
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: malaria and dengue fever
water contact disease: schistosomiasis
respiratory disease: meningococcal meningitis
animal contact disease: rabies (2013) (2016)
The same text in 2018 and 2019.
- degree of risk:
- very high (2016)
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever (2016)
- vectorborne diseases:
- malaria and dengue fever (2016)
- water contact diseases:
- schistosomiasis (2016)
- animal contact diseases:
- rabies (2016)
- respiratory diseases:
- meningococcal meningitis (2016)
degree of risk: very high (2016)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever (2016)
vectorborne diseases: malaria and dengue fever (2016)
water contact disease: diseases: schistosomiasis
respiratory disease: meningococcal meningitis
animal contact disease: diseases: rabies (2016)
respiratory diseases: meningococcal meningitis (2016)
- degree of risk:
- very high (2020)
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact diseases:
- schistosomiasis
- animal contact diseases:
- rabies
- respiratory diseases:
- meningococcal meningitis
degree of risk: very high (2016) (2020)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever (2016)
vectorborne diseases: malaria and dengue fever (2016)
water contact diseases: schistosomiasis (2016)
animal contact diseases: rabies (2016)
respiratory diseases: meningococcal meningitis (2016)
Published as “Major infectious diseases”
- degree of risk:
- very high (2020)
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact diseases:
- schistosomiasis
- animal contact diseases:
- rabies
- respiratory diseases:
- meningococcal meningitis
Published as “Major infectious diseases”
- degree of risk:
- very high (2020)
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact diseases:
- schistosomiasis
- animal contact diseases:
- rabies
- respiratory diseases:
- meningococcal meningitis
degree of risk: very high (2020)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: malaria and dengue fever
water contact diseases: schistosomiasis
animal contact diseases: rabies
respiratory diseases: meningococcal meningitis
degree of risk: very high (2020)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: malaria and dengue fever
water contact diseases: schistosomiasis
animal contact diseases: rabies
respiratory diseases: meningococcal meningitis
Published as “Major infectious diseases”
- degree of risk:
- very high (2020)
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact diseases:
- schistosomiasis
- animal contact diseases:
- rabies
- respiratory diseases:
- meningococcal meningitis
note: on 21 March 2022, the US Centers for Disease Control and Prevention (CDC) issued a Travel Alert for polio in Africa; Chad is currently considered a high risk to travelers for circulating vaccine-derived polioviruses (cVDPV); vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus ; this means it can be spread more easily to people who are unvaccinated against polio and who come in contact with the stool or respiratory secretions, such as from a sneeze, of an “infected” person who received oral polio vaccine; the CDC recommends that before any international travel, anyone unvaccinated, incompletely vaccinated, or with an unknown polio vaccination status should complete the routine polio vaccine series; before travel to any high-risk destination, the CDC recommends that adults who previously completed the full, routine polio vaccine series receive a single, lifetime booster dose of polio vaccine
Published as “Major infectious diseases”
- degree of risk:
- very high (2020)
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact diseases:
- schistosomiasis
- animal contact diseases:
- rabies
- respiratory diseases:
- meningococcal meningitis
note: on 21 March 2022, the US Centers for Disease Control and Prevention (CDC) issued a Travel Alert for polio in Africa; Chad is currently considered a high risk to travelers for circulating vaccine-derived polioviruses (cVDPV); vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus ; this means it can be spread more easily to people who are unvaccinated against polio and who come in contact with the stool or respiratory secretions, such as from a sneeze, of an “infected” person who received oral polio vaccine; the CDC recommends that before any international travel, anyone unvaccinated, incompletely vaccinated, or with an unknown polio vaccination status should complete the routine polio vaccine series; before travel to any high-risk destination, the CDC recommends that adults who previously completed the full, routine polio vaccine series receive a single, lifetime booster dose of polio vaccine
Rewritten: too little of the 2021 text remains to mark the changes.
degree of risk: very high (2020)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: malaria and dengue fever
water contact diseases: schistosomiasis
animal contact diseases: rabies
respiratory diseases: meningococcal meningitis
note: on 21 March 2022, the US Centers for Disease Control and Prevention (CDC) issued a Travel Alert for polio in Africa; Chad is currently considered a high risk to travelers for circulating vaccine-derived polioviruses (cVDPV); vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus ; this means it can be spread more easily to people who are unvaccinated against polio and who come in contact with the stool or respiratory secretions, such as from a sneeze, of an “infected” person who received oral polio vaccine; the CDC recommends that before any international travel, anyone unvaccinated, incompletely vaccinated, or with an unknown polio vaccination status should complete the routine polio vaccine series; before travel to any high-risk destination, the CDC recommends that adults who previously completed the full, routine polio vaccine series receive a single, lifetime booster dose of polio vaccine
degree of risk: very high (2020)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: malaria and dengue fever
water contact diseases: schistosomiasis
animal contact diseases: rabies
respiratory diseases: meningococcal meningitis
note: on 21 March 2022, the US Centers for Disease Control and Prevention (CDC) issued a Travel Alert for polio in Africa; Chad is currently considered a high risk to travelers for circulating vaccine-derived polioviruses (cVDPV); vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus ; this means it can be spread more easily to people who are unvaccinated against polio and who come in contact with the stool or respiratory secretions, such as from a sneeze, of an “infected” person who received oral polio vaccine; the CDC recommends that before any international travel, anyone unvaccinated, incompletely vaccinated, or with an unknown polio vaccination status should complete the routine polio vaccine series; before travel to any high-risk destination, the CDC recommends that adults who previously completed the full, routine polio vaccine series receive a single, lifetime booster dose of polio vaccine
- degree of risk:
- very high (2023)
- food or waterborne diseases:
- bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
- vectorborne diseases:
- malaria and dengue fever
- water contact diseases:
- schistosomiasis
- animal contact diseases:
- rabies
- respiratory diseases:
- meningococcal meningitis
note: on 31 August 2023, the US Centers for Disease Control and Prevention (CDC) issued a Travel Alert for polio in Africa; Chad is currently considered a high risk to travelers for circulating vaccine-derived polioviruses (cVDPV); vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus; this means it can be spread more easily to people who are unvaccinated against polio and who come in contact with the stool or respiratory secretions, such as from a sneeze, of an “infected” person who received oral polio vaccine; the CDC recommends that before any international travel, anyone unvaccinated, incompletely vaccinated, or with an unknown polio vaccination status should complete the routine polio vaccine series; before travel to any high-risk destination, the CDC recommends that adults who previously completed the full, routine polio vaccine series receive a single, lifetime booster dose of polio vaccine
degree of risk: very high (2020) (2023)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: malaria and dengue fever
water contact diseases: schistosomiasis
animal contact diseases: rabies
respiratory diseases: meningococcal meningitis
note: on 21 March 2022, the US Centers for Disease Control and Prevention (CDC) issued a Travel Alert for polio in Africa; Chad is currently considered a high risk to travelers for circulating vaccine-derived polioviruses (cVDPV); vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus ; this means it can be spread more easily to people who are unvaccinated against polio and who come in contact with the stool or respiratory secretions, such as from a sneeze, of an “infected” person who received oral polio vaccine; the CDC recommends that before any international travel, anyone unvaccinated, incompletely vaccinated, or with an unknown polio vaccination status should complete the routine polio vaccine series; before travel to any high-risk destination, the CDC recommends that adults who previously completed the full, routine polio vaccine series receive a single, lifetime booster dose of polio vaccine
degree of risk: very high (2020)
food or waterborne diseases: bacterial and protozoal diarrhea, hepatitis A and E, and typhoid fever
vectorborne diseases: malaria and dengue fever
water contact diseases: schistosomiasis
animal contact diseases: rabies
respiratory diseases: meningococcal meningitis
note: on 21 March 2022, 31 August 2023, the US Centers for Disease Control and Prevention (CDC) issued a Travel Alert for polio in Africa; Chad is currently considered a high risk to travelers for circulating vaccine-derived polioviruses (cVDPV); vaccine-derived poliovirus (VDPV) is a strain of the weakened poliovirus that was initially included in oral polio vaccine (OPV) and that has changed over time and behaves more like the wild or naturally occurring virus ; virus; this means it can be spread more easily to people who are unvaccinated against polio and who come in contact with the stool or respiratory secretions, such as from a sneeze, of an “infected” person who received oral polio vaccine; the CDC recommends that before any international travel, anyone unvaccinated, incompletely vaccinated, or with an unknown polio vaccination status should complete the routine polio vaccine series; before travel to any high-risk destination, the CDC recommends that adults who previously completed the full, routine polio vaccine series receive a single, lifetime booster dose of polio vaccine
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Cite this page
Central Intelligence Agency. “Chad: Major infectious diseases.” The World Factbook, 2005–2023 editions. Archived by The Factbook, thefactbook.org/chad/major-infectious-diseases.