@article{fdi:010087564,
  title = {{T}rypanosome infections and anemia in cattle returning from transhumance in tsetse-infested areas of {C}ameroon},
  author = {{F}arikou, {O}. and {S}imo, {G}. and {N}jiokou, {F}. and {N}gasse, {G}. {I}. {K}. and {F}ru, {M}. {A}. and {G}eiger, {A}nne},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he objective of this work was to assess the anemic status and the use of an immunological test and {PCR}-based methods to determine the infection rates of trypanosomes species. {T}ranshumance aims to provide cattle with greener pastures and greater water resources than in the {D}jerem region during the dry season. {T}wo criteria were used to assess the health status of the animals, the prevalence of trypanosomiasis and the level of anemia. {I}n addition, we have evaluated the effectiveness, in trypanosomiasis detection, of the {V}ery {D}iag {K}it ({CEVA} {S}ante animale), a {R}apid diagnosis test ({RDT}) based on immunological identification of {T}. congolense s.l. and {T}. vivax, responsible for {AAT}. {F}our trypanosome species ({T}rypanosoma congolense savannah type ({T}cs), {T}. congolense forest type ({T}cf), {T}. brucei s.l. ({T}br) and {T}. vivax ({T}vx)) were identified in cattle sampled in four villages. {T}he overall infection rate determined by {PCR} (68.6%) was much higher than those generally reported in cattle from the {A}damawa region (35 to 50%). {I}nfections (including mixed infections) by {T}c s.l. ({T}cs + {T}cf) were predominant (45.7%). {T}he infection rates were also determined using the {V}ery {D}iag {K}it allowing us to identify {T}c s.l. and {T}vx in the field in less than 20 min. {T}his method provided, for the global infection, a higher rate (76.5%) than that determined by {PCR} (68.6%), although it is supposed to be less sensitive than {PCR}. {T}c s.l. infection rate (37.8%) was similar to that (38.8%) determined by {PCR} ({T}cs + {T}cf single infections). {I}n contrast, the prevalence of {T}vx single infections measured by {RDT} (18%) was nearly two-fold higher than that (9.4%) measured by {PCR}. {T}hus, further comparative analyses seem to be needed in order to more accurately assess the sensitivity and specificity of the {V}ery {D}iag test under our conditions of use on blood samples. {T}he mean {PCV}s in trypanosome-infected as well as in uninfected cattle were below 25%, the threshold below which an animal is considered anemic. {O}ur study shows that cattle return from transhumance in poor health. {I}t raises questions about its real benefit, especially since the herds are themselves likely to become vectors of trypanosomiasis and possibly of other diseases. {A}t least, effective measures have to be undertaken to treat all cattle coming back from transhumance.},
  keywords = {cattle trypanosomiasis ; transhumance ; packed-cell volume ; trypanosome ; species ; immunological test ; {PCR}-based method ; {C}ameroon ; {CAMEROUN}},
  booktitle = {},
  journal = {{M}icroorganisms},
  volume = {11},
  numero = {3},
  pages = {712 [13 p.]},
  year = {2023},
  DOI = {10.3390/microorganisms11030712},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087564},
}