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According to the Ministry of Health, 177 patients have so far recovered, including six in Quang Ninh, Ha Nam and Ninh Binh provinces on April 16.

Among 91 active cases, seven tested negative once. Twenty nine others tested negative twice.

After the first case was reported on April 16 morning in the northern mountainous province of Ha Giang, the province has been added to the list of localities at medium risk.

Source: VNA