Sowemimo Oluyomi Abayomi

Sowemimo Oluyomi Abayomi

Senior Lecturer
Ph.D
Senior Lecturer

PUBLICATIONS

  1. Theses/ Dissertation

(i) Sowemimo, O.A. (1990):   Age and growth determination of a fish Citharinus citharus in Lake Kanji, Nigeria. B.Sc. Dissertation Obafemi Awolowo University, Ile-Ife.

(ii) Sowemimo, O.A. (2000): The occurrence of helminth infections in Archachatina marginata, Achatina fulica and Limicalaria aurora in Ile-Ife. M.Sc. Thesis Obafemi Awolowo University, Ile-Ife.

(iii) Sowemimo, O.A. (2007): Toxocariasis and other intestinal helminth infections in dogs in Ile-Ife and Ibadan, Southwest Nigeria.  Ph.D. Thesis Obafemi Awolowo University, Ile-Ife, Osun State.

  1. Books and Monographs: Nil
  2. Contribution to Books: Nil
  3. Published Journal Articles:

(i)    Asaolu, S.O., Ofoezie, I.E., Odumuyiwa, P.A., Sowemimo, O.A. and  Ogunniyi,        T.A.B. (2002): Effect of water supply and sanitation on the prevalence and intensity of Ascaris lumbricoides among pre-school-age children in Ajebandele and Ifewara, Osun State, Nigeria. Transactions of the Royal Society of Tropical Medicine and Hygiene, 96: 600-604. UK

(ii)   Sowemimo, O.A. and Asaolu, S.O. (2004): The prevalence of Angiostrongylus           cantonensis (Chen) in Archachatina marginata (Swainson) in Ile-Ife, Nigeria.  Ife Journal of Science 6(1): 1-5. Nigeria

(iii)  Asaolu, S.O., Ofoezie, I.E., Sowemimo, O.A., Odumuyiwa, P.A., Hassan, O.A.  and Onipede, A. (2004):  Nutritional status, environmental conditions and infection         patterns among rural children in Ife area, Osun State, Nigeria Environmental         Management Journal, Nigeria. 1: 17-31. Nigeria

(iv)  Sowemimo, O.A. and Asaolu, S.O. (2004): Preliminary studies of the Helminth         Parasites of Limicolaria aurora in Ile-Ife, Nigeria. Ife Journal of Science 6 (2): 105– 107. Nigeria

(v) Alo, O.A., Asaolu, S.O. and Sowemimo, O.A. (2005): The prevalence of malaria        among pre-school age children at Ifewara and Ikire communities, Osun State,         Nigeria. Science Focus 10 (1): 68-71. Nigeria

(vi)  Sowemimo, O.A. and Orisadipe, A.Y. (2006): A survey of helminth parasites of       goats at an abattoir in Ile-Ife, Osun State, Nigeria. Science Focus. 11(2): 161-163.        Nigeria

(vii) Asaolu, O.O., Asaolu, S.O., Sowemimo, O.A., Hassan, A.O. and Alo, O.A. (2006): Community control of malaria infection among pre-school age children through the use of insecticide treated nets at Ifewara, Osun State, Nigeria. Science Focus. 11(2): 172-175. Nigeria

(viii) Sowemimo, O. A. (2007): Prevalence and intensity of Toxocara canis (Werner,       1782) in dogs and its potential public health significance in Ile       Ife, Nigeria. Journal   of Helminthology 81: 433-438. UK

(ix)  Sowemimo, O.A. and Asaolu, S.O. (2008): Epidemiology of intestinal helminth        parasites of dogs in Ibadan, Nigeria. Journal of Helminthology 82: 89-93. UK

(x)   Sowemimo, O.A. and Asaolu, S.O. (2008): The daily egg production of Ancylostoma caninum and the distribution of the worm along the digestive tract of the dog. Research Journal of Parasitology 3(3): 92-97. USA

(xi)  Sowemimo, O. A. and Asaolu, S.O. (2008): Survey of intestinal helminth parasites    of puppies in Ile-Ife, Nigeria. Ife Journal of Science 10(1): 67 – 72. Nigeria

(xii) Sowemimo, O. A. (2009): The prevalence and intensity of gastrointestinal parasites of dogs in Ile-Ife, Nigeria. Journal of Helminthology 83: 27 – 31. UK

(xiii) Sowemimo, O. A. and Asaolu, S. O. (2009): Comparison of two techniques for        diagnosis of intestinal helminthiases in dogs in Ile – Ife, Nigeria. The Zoologist 7: 82          – 87. Nigeria

(xiv) Sowemimo, O. A., Ipadeola, A. and Omokungbe, A. (2010): Toxocara cati   infections in domestic cats from two communities in Southwestern Nigeria. The            Zoologist 8: 5 – 9 Nigeria

(xv) Sowemimo, O. A. and Asaolu, S.O. (2011): Current status of soil-transmitted            helminthiases among pre – school and school-aged children from Ile – Ife, Osun  State, Nigeria. Journal of Helminthology 85: 234 – 238. UK

(xvi) Sowemimo, O. A. (2012): Prevalence and intensity of gastrointestinal parasites of domestic cats in Ode – Irele and Oyo communities, Southwest Nigeria. Journal of    Parasitology and Vector Biology. 4 (1): 7 – 13. USA

(xvii) Sowemimo, O. A., Asaolu, S. O., Adegoke, F. O. and Ayanniyi, O. O. (2012):Epidemiological survey of gastrointestinal parasites of pigs in Ibadan, Southwest      Nigeria. Journal of Public Health and Epidemiology 4 (10): 294 – 298. USA

(xviii)Babatunde, T. A., Asaolu, S. O. and Sowemimo, O. A. (2013): Urinary      schistosomiasis among pre-school and school aged children in two peri urban    communities in Southwest Nigeria. Journal of Parasitology and Vector Biology 5    (7): 96-101. USA

(xix) Ogunkanbi, A. E. and Sowemimo, O. A. (2014): Factors associated with ascariasis among pre-school aged children in Ile-Ife, Osun State, Nigeria. Journal of Parasitology and Vector Biology 5(8): 117-123. USA

(xx) Akeredolu, A. B. and Sowemimo, O. A. (2014): Prevalence, intensity and associated risk factors for Toxocara canis infection in Nigerian dogs. Journal of Parasitology and Vector Biology 5(8): 111-116.  USA

* (xxi) Salawu, S. A., Asaolu, S. O. and Sowemimo, O. A. (2014): Co-infections with Schistosoma haematobium and soil-transmitted helminths among school–aged children in Saki, Oyo State, Nigeria.  Journal of Public Health and Epidemiology 6(4): 417-423. USA

*(xxii) Sowemimo, O. A. and Ayanniyi, O. O. (2016): Presence of Toxocara eggs on the hairs of dogs from Southwest Nigeria. Journal of Bacteriology and Parasitology 7 (6): 1 – 4. doi:10.4172/2155-9597.1000296 UK

*(xxiii) Sowemimo, O. A. and Oluwafemi, T. A. (2017): A survey of helminth parasites of the Lizard, Agama agama in Ile-Ife and Ibadan Southwest Nigeria. Journal of Bacteriology and Parasitology 8 (1): 1 – 6. doi:10.4172/2155-9597.1000303 UK

*(xxiv) Sowemimo, O. A., Lee, Y-L., Asaolu, S.O. Chuang, T-W., Akinwale, O. P., Badejoko, B.O., Gyang, V.P., Nwafor, T., Henry, E., Fan, C-K. (2017): Sero-epidemiological study and associated risk factors of Toxocara canis infection among preschool children in Osun State, Nigeria. Acta Tropica 173: 85 – 89. NETHERLANDS

*(xxv) Sowemimo, O. A. and Ayanniyi, O. O. (2017) Gastrointestinal helminth parasites of domestic dogs in Ilesa, Osun State, Nigeria: A faecal examination survey study. Journal of Bacteriology and Parasitology 8 (3): 1-6. doi:10.4172/2155-9597.1000311. UK

*(xxvi) Omonijo, A. O. and Sowemimo, O. A. (2017): Prevalence of ectoparasites of dogs and cats in Ijero and Moba LGAs, Ekiti State, Nigeria. Nigerian Journal of Parasitology 38 (2): 278 – 283. NIGERIA

*(xxvii) Oluwafemi, T.A., Sowemimo, O.A. and Bamidele, A.O. (2017): Parasitic infections of two species of Lizard (Hemidactylus frenatus and Mabuya quinquetaeniata) from two cities in Southwest, Nigeria. Annual Research & Review in Biology 18 (2): 1 – 13. UK

(xxviii) Olukosi, A., Sowemimo, O., Ajibaye S., Orok, B., Aina O., Amure O., Afolabi B. and Onajole A. (2018). Performance of Microscopy Method and Rapid Diagnostic Tests in Malaria Diagnosis amongst pregnant women in Lagos, Southwest Nigeria. Diversity and Equality in Health Care 15(3), 104 – 109.

(xxix)  Oluyomi A. Sowemimo, Tsung-Han Wu, Yueh-Lun Lee, Samuel O. Asaolu, Ting-Wu Chuang, Olaoluwa P. Akinwale, Bolaji O. Badejoko, Vincent P. Gyang, Timothy Nwafor, Emmanuel Henry and Chia-Kwung Fan (2018). Toxoplasma gondii: seroprevalence and associated risk factors among prescool-aged children in Osun State, Nigeria. Transactions of the Royal Society Medicine and Hygiene 112 (11), 486-491.

(xxx).  Kemisola Ikotun, Oluyomi Sowemimo, Chia-Mei Chou, Kayode Ajenifuja, Ting-Wu Chuang, Samuel Asaolu, Olaoluwa Akinwale, Vincent Gyang, Timothy Nwafor, Emmanuel Henry and Chia-Kwung Fan (2020). High seroprevalence of Toxocara antibodies in pregnant women attending an antenatal clinic at a university hospital in Ile – Ife, Nigeria. Transactions of the Royal Society of Tropical Medicine and Hygiene. Doi:10.1093/trstmh/trz116.

(xxxi). Deslyper, G., Sowemimo, O.A., Beresford, J. and Holland, C.V. (2020). Ascaris lumbricoides and Ascaris suum vary in their larval burden in a mouse model. Journal of Helminthology 94, e128, 1-8.  https://doi.org/10.1017/s0022149x20000127.

* Published after last promotion

  1. Edited and Refereed Conference Proceedings: Nil
  2. Articles Accepted for Publication: Nil
  3. Manuscripts Submitted for Publication: Nil
  4. Creative Work: Nil
  5. Technical Reports: Nil
  6. Papers and Works in Progress: Nil
  1. PROFESSIONAL ACCOMPLISHMENT:

My postgraduate training was in the area of helminthology which involved study on the dog ascarid worm and other intestinal helminths. During the study on the intestinal worm, Spirocerca lupi, one of the intestinal worms was recorded for the first time in Nigeria thereby adding to the knowledge of the distribution of intestinal parasites in the Afrotropical region.

Most of my research findings were published in reputable International Journals in the field of Parasitology and Helminthology. The major contribution I have made is the confirmation of high prevalence of Toxocara canis, a zoonotic parasite in companion animals (dogs and cats) which poses a health threat to humans. Recent study has confirmed the presence of this parasite among preschool- aged children in Southwest, Nigeria. My papers have been cited by researchers in this field and I have also participated in various scientific meetings within and outside Nigeria made possible by Travel grants received from different donors.

I have also had opportunities to engage in collaborative research studies with colleagues in Europe which has resulted in publication of research papers in Journal of high impact factor.

  1. CONFERENCES, SEMINARS AND WORKSHOPS ATTENDED WITH DATES:
  2. 22nd Annual Conference of the Nigerian Society for Parasitology held at University of Benin, Benin City, 4th – 7th November, 1998.

Paper presented:    The Occurrence of helminth infections in Archachatina marginata, Achatina fulica and Limicolaria aurora in Ile-Ife, Nigeria.

  1. 11th International Congress of Parasitology (ICOPAXI) held at the Scottish Exhibition and Conference Centre (SECC), Glasgow, Scotland, K. 6th – 11thAugust 2006.

Paper presented:    (a) Intestinal helminth infections in dogs at Ile-Ife and Ibadan Southwest Nigeria.

(b) Survey of helminth parasites of puppies in Ile-Ife, Nigeria.

  • 21st International Conference of the World Association for the Advancement of Veterinary Parasitology held at the International Convention Centre (ICC) Gent, Belgium, 19th – 23rd August, 2007.

Paper presented:    (a) Epidemiological studies on the gastrointestinal helminth  parasites of dogs in Ibadan, Nigeria.

(b) Prevalence and risk factors for Toxocara canis infection in dogs in Ile-Ife and Ibadan, South West Nigeria.

  1. Keystone Symposia titled “Translating New Technologies to Improve Public Health in Africa’’ held at Speke Resort and Conference Centre, Kampala, Uganda between 15th – 20th May, 2008.

Paper presented:    The Prevalence and intensity of gastrointestinal parasites of dogs and their potential public health significance in Ile-Ife, Nigeria.

  1. Keystone Symposia titled “Pathogenesis and Immune Regulation in Helminth Infections” held at Granlibakken Resort, Tahoe City, California, USA, 1st – 5th February, 2009.
  2. 1st Zonal Workshop of the Parasitology and Public Health Society of Nigeria tiled “Ethical Issues in the Control and Treatment of Malaria and HIV/AIDS in Africa” held at the Main Auditorium of the Nigerian Institute of Medical Research, Lagos, Nigeria, 23rd – 25th June,
  • The Biennial Meeting of the Royal Society of Tropical Medicine and Hygiene titled “Global Health Challenges 2010 and beyond held at Carnatic House –Liverpool University, Liverpool, UK, 8th – 10th September, 2010.

Paper presented:    Current status of soil – transmitted helminthiases among pre – school and schoolchildren from Ile – Ife, Osun State, Nigeria.

  • The 19th World Congress of Epidemiology held at Edinburgh International Conference Centre, Edinburgh, UK, 7th – 11th August 2011.
  1. International Conference on Pathology held at DoubleTree by Hilton Philadelphia Center City, USA, 27th -29th August 2012.

Paper presented:    The current epidemiological status of soil-transmitted helminths and schistosomiasis in Nigeria.

  1. 4th Annual Biomedical Research Ethics Course held at the Institute of Public Health, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria, 16th – 18th February, 2015
  2. 6th Annual Scientific Conference held at The Main Auditorium Nigerian Institute of Medical Research, Yaba, Lagos, Nigeria, 10th – 12th November, 2015
  • Keystone Symposia titled “Co-Infection: A Global Challenge for Disease Control” held at Centro de Artes e Convencoes (UFOP) Ouro Preto, Minas Gerais, Brazil, from March 15 – 20, 2015.
  • 2nd International Conference on Parasitology held at Manchester Airport Marriott Hotel, Manchester, UK, 1st – 3rd August, 2016

Paper presented: Prevalence of Toxocara eggs in hair and faecal samples from dogs in Southwest Nigeria

  • Molecular and Cellular Biology of Helminths XI held at Bratsera Hotel, Hydra, Greece, 3 – 8 September, 2017.

Paper presented: Seroepidemiological study and associated risk factors of Toxocara canis infection among preschool children in Osun State, Nigeria.

  1. New York University Abu Dhabi (NYUAD) Workshop on Parasitic Nematodes held at New York University Abu Dhabi Saadiyat Campus, Institute Conference Center, A6, United Arab Emirates, January 4 – 6, 2018.

 

CONTRIBUTIONS TO KNOWLEDGE

My research efforts have focused on the epidemiology of intestinal helminths in humans and domestic animals. My publications 3a (i, xv & xviii) have contributed immensely to knowledge on the problem of helminthiasis in preschool and school-aged children in Nigeria. Papers 3a (ii & iv) revealed the parasitic infections in two species of edible snail in Nigeria and recommended that snails should be well-cooked before eating to avoid contracting a disease known as angiostrongyliasis or eosinophilic meningitis caused by human infection with the larvae of A. cantonensis. Data on child health, anthropometry, water supply and sanitation collected from four communities in Osun State for a period of over five years was analysed and published in paper 3a (iii) and showed that environmental conditions must be conducive in order to raise healthy and well-nourished children. Paper 3a(v) reported the prevalence of malaria among pre-school children in two communities in Osun state and the impact of the use of insecticide treated nets (ITNs) in the reduction of the prevalence of malaria infection.  The helminth fauna of goats and pigs were studied and the findings were published in papers 3a (vi) & 3a (xvii) respectively.

Paper 3a (viii & xii) provided information on the parasitic infections of local and exotic breeds of dogs from Ile-Ife and Ibadan and also discussed the public health significance of the findings. The studies revealed high prevalences of two major zoonotic parasites, Toxocara canis and Ancylostoma sp. (causative agents of visceral and ocular larva migrans respectively in humans), which could constitute an important risk factor for transmission to humans. Paper 3a(ix) compared the gastrointestinal parasites of dogs from two veterinary clinics in Ibadan, Oyo State, Nigeria and the results showed that the prevalence of helminth infections among dogs from a privately owned clinic, was significantly lower than that of a government-owned clinic. Paper 3a (x) examined the fecundity i.e. the daily egg production of a hookworm, Ancylostoma caninum and concluded that faecal egg counts can still provide useful and reliable ways of estimating the egg production of the hookworm, A. caninum despite some limitations. Paper 3a(xi) investigated the helminth fauna of puppies in Ile-Ife using post mortem technique. The results showed that four intestinal parasites comprising of three nematodes and one cestode. One of the nematodes, Spirocerca lupi was reported for the first time in Nigeria. Paper 3a (xiii) compared the efficiency of two different diagnostic techniques, of intestinal helminthiases in dogs and reported no differences in the efficacy of both techniques. Paper 3a (xiv & xvi) studied the helminth fauna of domestic cats in two communities in southwest, Nigeria and it was revealed that a total of 13 species of parasites were identified comprising of eight nematodes, three cestodes, one trematode and one protozoan. The study recommended appropriate control strategies for the reduction of the prevalence of parasitic infection. Paper 3a (xix) studied the risk factors predisposing school- aged children to transmission of ascariasis in Ile-Ife. Parental educational background, sanitation, washing hands with soap and water and deworming history were identified as risk factors. The study recommended that the factors should be taken into consideration when formulating strategies for ascariasis control in Nigeria. Paper 3a (xx) investigated the risk factors for toxocariasis transmission among Nigerian dogs. The study identified the age of dogs and the mode of life as the factors. Furthermore, puppies and stray dogs were reported to be heavily infected with Toxocara canis.

My papers published especially in the Journal of Helminthology which have been shown to be popularly received by the scientific community judging by the rather high number of requests for electronic version of the articles I have received from different authors