Seroprevalence and risk factors associated with bovine herpesvirus 1 in Northeast of Algiers

Abstract

Objective: The present study was conducted to estimate the seroprevalence and associated risk factors of bovine herpesvirus 1 (BoHV-1) in a dairy herd in the northeast of Algiers, Algeria. Materials and methods: The target area is in the northeast of Algiers with humid to semi-dry climate and known for its economically important production of cattle. A total of 1,066 randomly selected individual blood samples of dairy herd collected at 120 dairy farms from rural districts of northeast of Algiers were evaluated with antibodies against BoHV-1 using commercial enzyme-linked immunosorbent assay kits, to determine the BoHV-1 infection status of the herds. A questionnaire submitted to the farmers during collection of the blood samples was used to collect data on potential BoHV-1 associated risk factors. Results: In the present study, the estimated farm and individual animal BoHV-1 seroprevalence levels were 58.33% and 14.16%, respectively. A logistic regression analysis of the random-effects model revealed that the significant associated risk factors for the present farm and individual animal seroprevalence levels were rural district, cattle introduced to the farm, region, and hygiene. Conclusion: This study found higher seroprevalence of BoHV-1 in the northeast of Algiers. The results could be used in designing the prevention and control strategy of BoHV-1 in the northeastern part of Algeria.

Serologic Evidence of Bovine Herpes Virus-1 in Cattle and Buffalo Population of Punjab, Pakistan

“…Increased age has been considered a risk factor for higher prevalence as a result of greater chances of virus exposure to susceptible animals with age. For example, one study noted that BoHV-1 is more prevalent in animals greater than 4 years (Kaddour et al, 2019). However, in the present study age was not found a statistically significant risk for BoHV-1.…”

Survey of Herd Management on Conventional Dairy Farms in North Algeria

“…Dairy farms should immunize their cattle against common infections such as BVD, IBR, Bovine Respiratory Syncytial Virus (BRSV), Parainfluenza-3 (PI3), clostridial infections, and leptospirosis to prevent or control disease outbreaks. However, several studies (Derdour et al 2017;Kaddour et al 2019) have found that BVD and IBR are present in Algerian dairy herds, even though none of the farmers vaccinated their herds against any of these common infectious agents, excluding rabies and foot and mouth disease. The vaccination program needs to take into account the infectious disease problems in the region as well as other factors.…”

Seroprevalencija zaraznog rinotraheitisa goveda u krava s pobačajem u Alžiru

“…Diagnosis of BHV-1 infection can be made by direct methods (virus isolation and identification) using PCR, hybridisation and nucleic acid sequencing, and by indirect methods (detection of antibodies against BHV-1) using the ELISA technique and the serum neutralisation test. The disease has been reported in Algeria in cattle through studies conducted on seroprevalence using ELISA, such as those of Kaddour et al (2019) and Derrar et al (2019) where the individual seroprevalence reported was 14.16% and 31.17%, respectively. Herd seroprevalence varied from 50% to 58.33% (Dechicha et al, 2010, Kaddour et al, 2019.…”

“…The disease has been reported in Algeria in cattle through studies conducted on seroprevalence using ELISA, such as those of Kaddour et al (2019) and Derrar et al (2019) where the individual seroprevalence reported was 14.16% and 31.17%, respectively. Herd seroprevalence varied from 50% to 58.33% (Dechicha et al, 2010, Kaddour et al, 2019.…”