https://i0.wp.com/hskurd.org/wp-content/uploads/2020/05/لففق.jpg?fit=720%2C720&ssl=1720720heyvasorakurdhttps://hskurd.org/wp-content/uploads/2020/10/HEYVA-SOR-1-300x150.pngheyvasorakurd2020-05-22 00:05:402020-09-13 12:37:06How and what is the contact tracing in Covid 19 pandemic ?
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