Farm/Market

Location

Birds’ Age (days)

Number of Serum Samples Collected

Vaccination with NDV

Rearing System

Farm 1

North Lebanon

28

10

Clone-d1

ND/Flu (oil)-d1

Lasota-d14

Closed

Farm 2

North Lebanon

22

5

Modified Live Vaccine-d1

LaSota-d12

Semi-open

Farm 3

North Lebanon

30

5

Modified Live Vaccine-d1

LaSota-d12

Semi-open

Backyard Layers

Beirut Suburbs

65

6

None

Extensive