Skip to main content

Table 1 The descriptive epidemiological data of the examined flocks for ACoV detection in the seven Upper Egypt governorates

From: A full-length S1 gene sequencing of a novel emerged GI-19 and GI-23 lineages of Infectious bronchitis virus currently circulating in chicken flocks in upper Egypt reveals marked genetic diversity and recombination events

Flock location

Poultry farms

Flock type

Flock age

Year

Vaccination programs

Mortality %

No. of birds

Collected samples

Signs and postmortem lesions

Beni-Seuf

10

Broilers,

20–35 days

2023

H120 (GI-1) + 4/91(GI-13) + Inactivated vaccine (GI-1)

9

9000–12000

Lung

Trachea

Kidney

Oviduct

Severe respiratory manifestations, congested lung, and trachea with caseous exudates

Breeders

23–61 weeks

3000–7000

44

31

15

–

El-Mina

18

Broilers,

23–31 days

2023

IB Primer (GI-1,12) + 4/91(GI-13) + Inactivated vaccine (GI-1)

10

7000–10,000

43

32

12

10

Respiratory manifestations, egg production disorders, nephropathogenic lesions, congested lung, and trachea, degenerated ovaries, and swollen oviducts

Breeders Layers

22–60 weeks

4000–9000

Assuit

29

Broilers

25–35 days

2023 2024

IB Primer (GI-1,12) + IB VarII (GI-23) + Inactivated vaccine (GI-1)

10

12,000–15000

60

23

17

35

Breeders, layers

22–62 weeks

9000–15000

Sohag

12

Broilers

20–30 days

2023 2024

H120 (GI-1) + IB VarII (GI23) + Inactivated vaccine (GI-1)

8

9000–11000

50

23

7

13

Breeders layers

23–62 weeks

2000–7000

Qena

7

Broilers

23–35 days

2024

H120 (GI-1) + 4/91 (GI-13) + Inactivated vaccine (GI-1)

9

8000–12000

29

20

9

5

Breeders

Layers

22–61 weeks

4000–8000

Aswan

6

Broilers

22–33 days

2023

IB Primer (GI-1,12) + 4/91(GI-13) and some are non-vaccinated

8

5000–7000

10

12

8

–

Severe respiratory manifestations, congested lung, and trachea with caseous exudates

New Valley

8

Broilers

20–35 days

2024

IB Primer (GI-1,12) + IB VarII (GI-23) and some are non-vaccinated

8

4000–6000

36

25

15

–