[1] Shaheed Benazir Bhutto Univ Vet & Anim Sci, Fac Vet Sci, Sakrand, Pakistan
[2] La Trobe Rural Hlth Sch, Wodonga, Vic, Australia
[3] Postgrad Inst Med Educ & Res, Dept Community Virol, Chandigarh, Punjab, India
[4] Postgrad Inst Med Educ & Res, Dept Community Med, Chandigarh, Punjab, India
[5] Postgrad Inst Med Educ & Res, Sch Publ Hlth, Chandigarh, Punjab, India
[6] Training Coll, Minist Hlth Nurses & Midwives, Tamale, Northern, Ghana
[7] Training Coll, Minist Hlth Nurses & Midwives, Tamale 565, Northern, Ghana
[8] Postgrad Inst Med Educ & Res, Dept Community Med, Chandigarh 565, Punjab, India
[9] Postgrad Inst Med Educ & Res, Sch Publ Hlth, Chandigarh 565, Punjab, India