A total of 65 Pasteurella multocida were isolated and identified from various animal’s samples received by Veterinary Research Institute (VRI) during the period of 2014 to 2016. These animals comprises of cattle, goat, pig, chicken, duck and rabbit. The serogroup of Pasteurella multocida were carried out using designation system of Carter’s capsular typing and molecular serogrouping method. Based on cases submitted to VRI, the prevalence of pasteurellosis in Malaysia ranging from 1.0% to 3.2% (2014 to 2016). It is low compared to previous reports and the pattern of predominant serogroups and animal hosts were found to be changing every year. In 2014, 80% (12/15) of the isolates were Pasteurella multocida Carter’s type D where all were isolated from goats. In 2015, the predominant serogroup changed to Pasteurella multocida Carter’s type A with a prevalence rate of 40.6% (13/32) which were mostly isolated from duck and cattle. While for Pasteurella multocida Carter’s type D, the prevalence in 2015 reduced to 21.9% (7/32) compared to the previous year and it was isolated from various animal species. Interestingly, in 2015 there was one isolate of Pasteurella multocida Carter’s type B isolated from goat with no reported history of outbreak. In 2016, the prevalence of Pasteurella multocida Carter’s type A increased to 72.2% (13/18), with a high percentage (92.3%) infection in young calves showing clinical signs with high mortality and morbidity in infected farms. Furthermore, during these 3 years of study, 3 isolates of Pasteurella multocida serogroup F were also identified each from pig, goat and chicken, respectively. In conclusion, this study revealed that pasteurellosis had become sporadic in Malaysia and the distribution of serogroups were diverse in all species of animal with no definitive host.

A total of 3430 serum samples from various animal species and humans were tested using microscopic agglutination test (MAT) to determine
the frequency of the important leptospiral serovars involved in animals and humans. The sera were screened against 14 serovars of pathogenic Leptospira interogans and 1 serovar of non-pathogenic Leptospira biflexa. Altogether, 441 (12.86%) of the tested serum samples were found to be positive serologically. Tested sera reacted to all 15 serovars used in this study. The most predominant serovar in cattle and sheep is hardjo (39.60% and 66.67%). However, in goat, buffalo and horse, the most frequent serovar detected is hebdomadis (30.00%, 32.58% and 57.14%). In dog, the most predominant serovar is bataviae (19.23%). In humans, the most predominant serovar is cynopteri (3.26%). Among all the samples tested, there were no positive samples from pig and cat. Domestic animals, rodents and
pets can infect the environment or transmit the disease to human or other animals. This study showed that domestic animals could play a role in the epidemiology of leptospirosis and represents a threat to
public health.