Beta
ManageSearchChatDiscover
376640

isolation, IDENTIFICATION AND SERO CONVERSION STUDIES ON BRSV IN EGYPT

Article

Last updated: 03 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Virology and viral diseases

Abstract

  The present work describes for the first time in Egypt the serodiagnosis isolation, and identification of respiratory syncytial virus from affected calves as well as the seroprevalence of infection among cattle.  In the present survey 250 nasal swabs and 400 sera sample were collected from calves, feed lot and diary cattle with different ages, seasons and different degree of respiratory signs, for BRsv isolation, identification and sero diagnosis. In addition to 150 calves apparently normal contact animals were examined. The collected samples represented six farms distributed throughout 5 Egyptian governorates The obtained results proved that 5 out of 7 virus isolates were from calves have 1-6 months age and another 2 isolates from unweaned calves that 2-3 weeks old, 6 isolates were detected in spring, season while only one during winter season. Only 3 out of 7 titrated viral isolates were identified as BRSV by SNT and one more by direct FAT. The isolated strains were designated as RBSV Salhai 1994 and RBsv Alexanderia 1994. The serodiagnosis results of 400 examined sera sample by SNT and ELISA revealed that 65 (16.25%) and 110 (27.5%) sera sample were positive respectively. the antibodies titer range from (1\8 to 1\64). Maternal immunity through seroconversion study showed a fadding of passive immunity completely at 5th month age.

DOI

10.21608/vmjg.1996.376640

Authors

First Name

SABER

Last Name

.

MiddleName

-

Affiliation

Faculty of Vet. Med. Cairo Univ.

Email

-

City

-

Orcid

-

First Name

M.

Last Name

HANA

MiddleName

-

Affiliation

Animal Health Res. Inst..

Email

-

City

-

Orcid

-

First Name

ABDEL-AZIZ

Last Name

SALEM

MiddleName

-

Affiliation

Animal Health Res. Inst..

Email

-

City

-

Orcid

-

First Name

S.

Last Name

MOHAMED

MiddleName

-

Affiliation

Animal Health Res. Inst..

Email

-

City

-

Orcid

-

First Name

HH.

Last Name

HADIA

MiddleName

-

Affiliation

«* Animal Health Res. Inst..

Email

-

City

-

Orcid

-

First Name

A.

Last Name

NAWAL

MiddleName

-

Affiliation

«* Animal Health Res. Inst..

Email

-

City

-

Orcid

-

First Name

M.

Last Name

ALI

MiddleName

-

Affiliation

«* Animal Health Res. Inst..

Email

-

City

-

Orcid

-

First Name

FATHEIA

Last Name

M

MiddleName

-

Affiliation

«* Animal Health Res. Inst..

Email

-

City

-

Orcid

-

Volume

44

Article Issue

4

Related Issue

50022

Issue Date

1996-10-01

Receive Date

2024-08-28

Publish Date

1996-10-01

Page Start

735

Page End

747

Print ISSN

1110-1423

Online ISSN

2537-1045

Link

https://vmjg.journals.ekb.eg/article_376640.html

Detail API

https://vmjg.journals.ekb.eg/service?article_code=376640

Order

376,640

Type

Original Article

Type Code

544

Publication Type

Journal

Publication Title

Veterinary Medical Journal (Giza)

Publication Link

https://vmjg.journals.ekb.eg/

MainTitle

isolation, IDENTIFICATION AND SERO CONVERSION STUDIES ON BRSV IN EGYPT

Details

Type

Article

Created At

23 Dec 2024