Prevalence of hydatid cyst in camels slaughtered at Katsina metropolitan abattoir, Katsina State, Nigeria

Cystic Echinococcosis, among other food animal zoonotic diseases, heralds a significant zoonotic threat to meat consumers due to the lack of stringent meat inspection policies and poor awareness of zoonoses by most livestock traders/butchers. Therefore, this study is aimed at determining the prevalence of hydatid cysts in camels slaughtered at katsina metropolitan abattoir, Katsina State, Nigeria. A total of 392 samples were collected over three months (November 2019 to January 2020), of which 129 samples were from males and 263 from females. Information about the age, sex and body condition of the slaughtered camels were recorded. The carcass of each camel was inspected carefully for the presence of Hydatid cysts, the organs infected, and the number of cysts present. The data were subjected to statistical analysis using the Chi-square test (χ2), and significant levels were determined at p<0.05 level for all the data, which revealed an overall prevalence of 14.0% (55/392). The prevalence rate of Hydatid cysts was 16.3% in females and 9.3% in males, while it is 16.8 and 5.3% in adult and young camels, respectively. We recommend a holistic epidemiological study on the prevalence of hydatid cysts in camels and more public enlightenment for effective control measures against the disease in Katsina State

Serological and molecular characterization of Cryptosporidium species from humans in Sokoto State, Nigeria

Cryptosporidium species are one of the most common causes of gastrointestinal infection in humans around the world. This study aimed at the characterization of Cryptosporidium species in humans using the 18S rRNA gene. Among the 368 human faecal samples screened using Cryptosporidium antigen Copro-ELISA kit, 61 (16.6%) were positive. The positive faecal samples were subjected to Nested PCR for the amplification of 830 bp fragments of small subunit (SSU) rRNA gene and followed by nucleotide sequencing. Out of the 61 copro-ELISA positive samples, 5 (8.2%) were PCR positive for Cryptosporidium species (3 (4.9%) of C. parvum and 2 (3.3%) of C. hominis). Two HIV patients were found to be harbouring C. parvum and C. hominis, so also as hypertensive and diarrheic patients harbouring C. parvum and C. hominis, respectively. Higher prevalence rates of Cryptosporidium was found in young children (11.1%), males (8.7%), loose faeces (42.9%) than older age groups (8.7%), females (7.9%) and well-formed (3.1%) or mucoid/pasty faeces (0%) based on the data gathered from the close-ended questionnaire also used on each human subject. This study was the first to report C. parvum and C. hominis infecting humans in Sokoto state, Northwestern Nigeria. It is suggested that a multi-locus study of Cryptosporidium species in developing countries would be necessary to determine the extent of transmission of Cryptosporidium in the populations