The World Health Organization (WHO) has confirmed the first three cases of Zika virus in India. As per WHO, the three cases have been reported in Gujarat’s Ahmedabad. The cases, which also include a pregnant woman, have been reported from city’s Bapunagar area. “Ministry of Health and Family Welfare-Government of India (MoHFW) reported three laboratory-confirmed cases of Zika virus disease in Bapunagar area, Ahmedabad District, Gujarat, State, India,” WHO website said confirming the news.
It added, “The routine laboratory surveillance detected a laboratory-confirmed case of Zika virus disease through RT-PCR test at B.J. Medical College, Ahmedabad, Gujarat. The etiology of this case has been further confirmed through a positive RT-PCR test and sequencing at the national reference laboratory, National Institute of Virology (NIV), Pune on 4 January 2017 (case 2, below). Two additional cases (case 1 and case 3), have then been identified through the Acute Febrile Illness (AFI) and the Antenatal clinic (ANC) surveillance. The cases are reported below in chronological order.”
The WHO website also mentioned the details of the three cases. Here are the details of the cases as issued by WHO:
Case 1: During the Acute Febrile Illness (AFI) surveillance between 10 to 16 February 2016, a total of 93 blood samples were collected at BJ Medical College (BJMC), Ahmedabad, Gujarat State. One sample from a 64-year-old male presenting with febrile illness of 8 days’ duration (negative for dengue infection) was found to be positive for Zika virus at BJMC, Ahmedabad. This is the first Zika positive case reported through AFI surveillance at BJMC, Ahmedabad, Gujarat State.
Case 2: A 34-year-old female, delivered a clinically well baby at BJMC in Ahmedabad on 9th November 2016. During her hospital stay, she developed a low-grade fever after delivery. No history of fever during pregnancy and no history of travel for the past three months was reported. A sample from the patient was referred to the Viral Research & Diagnostic Laboratory (VRDL) at the BJMC for dengue testing and thereafter found to be positive for Zika virus. She was discharged after one week (on 16 November 2016). The sample was re-confirmed as Zika virus positive by RT-PCR and sequencing at NIV, Pune.
Case 3: During the Antenatal clinic (ANC) surveillance between 6 and 12 January 2017, a total of 111 blood samples were collected at BJMC. One sample from a 22-year-old pregnant female in her 37th week of pregnancy has been tested positive for Zika virus disease.
WHO further reports that the findings suggest low-level transmission of Zika virus and new cases may occur in the future. Under its risk assessment section, WHO suggests that efforts to strengthen surveillance should be maintained in order to better characterise the intensity of the viral circulation and geographical spread, and monitor Zika virus-related complications.