[1] Nehru Mem Coll, Dept Zool, Puthanampatti, Tamil Nadu, India
[2] Bharath Univ, Cent Res Lab, Sree Balaji Med Coll & Hosp, Madras 600044, Tamil Nadu, India
[3] King Inst Prevent Med & Res, Dept Virol, Madras 600032, Tamil Nadu, India
[4] Bharath Univ, Dept Pharmacol, Sree Balaji Med Coll & Hosp, Madras 600044, Tamil Nadu, India