VOLUME 39 | ISSUE 2 | MARCH-APRIL 2019

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RE: Seroprevalence of Zika virus among asymptomatic pregnant mothers and their newborns in the Najran region of southwest Saudi Arabia

Sora Yasri,a Viroj Wiwanitkitb

From the aKMT Primary Care Center, Bangkok, Thailand; bSurindra Rajabhat University, Surin, Thailand

How to cite this article:

Yasri S, Wiwanitkit V. RE: Seroprevalence of Zika virus among asymptomatic pregnant mothers and their newborns in the Najran region of southwest Saudi Arabia. Ann Saudi Med 2019; 39(2): 124.

 

 

To the Editor: We read the publication on “Seroprevalence of Zika virus among asymptomatic pregnant mothers and their newborns in the Najran region of southwest Saudi Arabia” with a great interest.1 Alayed et al found that “Twenty-four (5.85%) mothers tested positive for anti-ZIKV IgM and 52 (12.68%) tested positive for anti-ZIKV IgG, but all infant samples were negative.”1 In fact, in any area where the mosquito vector exists (Aedes aegypti), there is a risk for Zika virus disease. A high positive seroprevalence rate is reported from many areas around the world despite there being no overt clinical cases. A good example is a report from Cambodia where many local people have immunoreactivity to Zika virus despite there being no clinical disease.2 Indeed, most cases of Zika virus infection are asymptomatic3 and this is the difficulty in clinical surveillance of the emergence of the disease in any setting. 

References

1. Alayed MS, Qureshi MA, Ahmed S, Alqahtani AS, Al-Qahtani AM, Alshaybari K, Alshahrani M, Asaad AM. Seroprevalence of Zika virus among asymptomatic pregnant mothers and their newborns in the Najran region of southwest Saudi Arabia. Ann Saudi Med. 2018 Nov-Dec;38(6):408-412. 

2. San K, Rajadhan V. Seroprevalence of Zika virus in Cambodia: a preliminary report. Adv Lab Med Int. 2016;6(3):37-40. 

3. Wiwanitkit S, Wiwanitkit V. Afebrile, asymptomatic and non-thrombocytopenic Zika virus infection: Don’t miss it! Asian Pac J Trop Med. 2016 May;9(5):513. 


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