Table 1

Distribution of iNTS serovars and genotypes circulating in the sampled countries in sub-Saharan Africa

Country
(number of iNTS*)
(a)
SerovarsNumber of iNTS
per serovar
(b)
% of total number of iNTS per country
(b)/(a)
Genotype
(sequence type)
Number of iNTS
per genotype
(c)
% of total number of iNTS per country
(c)/(a)
Burkina Faso (12)Typhimurium758313650
1918
Enteritidis43311433
Dublin181018
Ghana (133)Typhimurium92693139068
1922
Enteritidis2015111814
18311
210711
Dublin1713101713
Muenster1132111
Poona1130811
Stanleyville1133911
Virchow1135911
Guinea-Bissau (9)Typhimurium556313222
19333
Enteritidis11111*111
Choleraesuis333145333
Kenya (1)Typhimurium11003131100
Madagascar (4)Typhimurium12519*125
Enteritidis37511‡375
Senegal (2)Typhimurium15019*150
Enteritidis15011*150
South Africa (1)Enteritidis110011*1100
Tanzania (4)Typhimurium37519375
Unknown1252533125
Total 8 countries† (166 iNTS isolates) (d)SerovarsNumber of iNTS per serovar (e)% of total number of iNTS in all 8 countries (e)/(d)Genotype (sequence type)Number of iNTS per genotype (f)% of total number of iNTS in all 8 countries (f)/(d)
Typhimurium11066ST3139960
ST19117
Enteritidis3018ST112817
Other STs‡21
Dublin1811ST101811
Others85Other STs§85
  • *iNTS: invasive non-typhoidal Salmonella.

  • †Total 8 countries: Burkina Faso, Ghana, Guinea-Bissau, Kenya, Madagascar, Senegal, South Africa and Tanzania presented in this table. No iNTS isolates were yielded in Sudan and Ethiopia.

  • ‡Other sequence types of S. Enteritidis detected: 1 ST183 (isolate yielded from Ghana; age/sex unknown due to missing data) and 1 ST2107 (from Ghana; a 22-year-old woman); both non-MDR and no antimicrobial resistant genes detected.

  • §Sequence types of the other NTS serovars: 1 Muenster ST321 (yielded from Ghana; age/sex/year unknown due to missing data), 1 Poona ST308 (yielded from Ghana in 2008; age/sex unknown due to missing data), 1 Stanleyville ST339 (yielded from Ghana; age/sex/year unknown due to missing data), 1 Virchow ST359 (from Ghana; age/sex/year unknown due to missing data), 3 Choleraesui ST145 (two isolates yielded from 1-year-old female infants in 2010 and 2011 and 1 from a 3-year-old female infant in 2012; all from Guinea-Bissau), 1 unknown ST2533 from Tanzania.