Dear All
I am Aamer Bin Zahur working on the epidemiology, diagnosis and progressive control of PPR in Pakistan. first of all i must say that the e-conference idea has facilitated interesting exchange of many experiences and findings regarding PPR control. I want to share observations with all the colleagues.
It was observed that several outbreaks initiated after the introduction of new animals in to the flock however, those newly introduced animals remained unaffected during the entire course of outbreak. Furthermore it was also observed that some of the outbreaks occurred two to three weeks after the introduction of animals in to the flock. therefore a longitudinal study was conducted to ascertain the role of recovered animals in the epidemiology of PPR. it was found that many of the recovered animals persistently at least up to sixteenth week post outbreak. however, when vaccination was conducted at the phase of the outbreak to entire flock i.e both affected and unaffected animals, the virus shedding was not observed in recovered
animals.
So this evidence may be kept in mind while developing a control program for PPR
Best Regards shed PPR virus in their fecal material
Dr. Aamer Bin Zahur
DVM, M.Sc(Hons), PhD
Principal Scientific Officer/Program Leader/Associate Professor
Animal Health Research Laboratories, ASI, NARC
Park Road, Islamabad. Pakistan
Ph : +92 51 9255029, +92 51 8443916
Fax: +92 51 9255420
Cell:+92 300 9502369
Dear Dr Aamer, I am sure many readers would like to know how you detected the virus in the faeces of the recovered animals- was it live virus recovered in cell-culture or virus antigen or RNA? Have you been able to carry out experiments to see if you can transmit infection to susceptible stock kept in-contact with these "recovered" animals? And what species were these animals? Kind regards, Moderator.