A Clinical Review of Zika Virus (ZIKAV)

A Clinical Review of Zika Virus (ZIKAV)

Volume 2, Issue 2, Page No 7-10, 2017

Author’s Name: Muhammad Hashim Razaa),1, Sarfraz Hussain2, Muhammad Abdul Rehman Tanveer3, Ayesha Zaman4

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1Department of Bioinformatics and Biotechnology, International Islamic University, Islamabad, Pakistan.44000

2Department of Microbiology, University of Veterinary and Animal Sciences, Lahore, Pakistan.54000

3Department of Microbiology, University of Central Punjab, Lahore, Pakistan.54000

4Department of Microbiology, Abbottabad University of Science and Technology, Abbottabad, Pakistan.22010

a)Author to whom correspondence should be addressed. E-mail:  hashim.msbt247@iiu.edu.pk

Adv. Sci. Technol. Eng. Syst. J. 2(2), 7-10 (2017); a DOI: 10.25046/aj020202

Keywords: ZIKAV, ZIKA Virus, ZIKV, Review of ZIKA Virus



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Zika virus (ZIKAV) is a flavi-virus, first isolated in 1947 in the Zika Forest of Uganda. ZIKAV is a positive-sense single-stranded RNA virus. ZIKAV is made up of two noncoding regions (5′ and 3′) that verge an open reading frame, which put into code a polyprotein smote into the capsid, precursor of membrane, envelope, and 7 nonstructural proteins. Inoculation of a human host is by Mosquito. After cellular en¬try, the virus enters skin cells through cellular receptors, enabling migration to the lymph nodes and blood circulation. ZIKAV may also enter to skin fibroblasts, keratino¬cytes, and immature dendritic cells. Several entry and adhesion factors enable infection, and cellular autophagy, needed for flaviviral replication. Transmission is by infected mosquito dur¬ing a blood meal. After endorsement, the virus replicates and is pass on to a reservoir animal at the next blood mealtime. ZIKAV is also transmitted via congenital, perinatal, and sexual, possible transmission by blood transfusion, ani¬mal bite and intrauterine transmission. Trans-mission via breast-feeding has not been reported. Incubation period from mosquito bite to symptom commencement is 3–12 days. Infection is likely subclinical in 80% of cases. Symptoms, which last for almost two to seven days include fever, conjunctivitis, arthralgia, myalgia, and pervasive rash, which may be itchy. Headache, retro-orbital pain, peripheral oedema, and gastrointestinal fracas have also been witnessed. Diagnosis is directed by history and consideration. The symptoms and clinical signs do not have adequate positive or negative prognostic value, and therefore laboratory testing is needed for dependable diagnosis. Laboratory testing includes polymerase chain reaction (PCR) of ZIKAV RNA. There is formerly no vaccine against ZIKAV, nor definite antiviral for the management of ZIKAV. Treatment is suggestive. Vector control by insecticides and removal of small pools of still water, the breeding sites for Aedes, is being instituted on a local level.

Received: 15 January 2017, Accepted: 06 February 2017, Published Online: 25 February 2017

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