Laboratory test for Zika virus has adopted in the southern Chinese city of Shenzhen, according to local authorities on Wednesday.

Shenzhen Entry-Exit Inspection and Quarantine Bureau aims strict border quarantine checks having detected the country's first imported case of Zika virus on Tuesday.

The patient, a 34-year-old male from Ganxian county of Jiangxi Province, had showed symptoms of fever, headache and dizziness on Jan. 28 in Venezuela, before returning to his hometown on Feb. 5 via Hong Kong and Shenzhen. He has been treated in a hospital in Ganxian since Feb. 6 and is now recovering.

Shenzhen receives the largest number of land-entry passengers in China, with increasing number of returnees from travel and work overseas during Spring Festival holiday.

Shenzhen Entry-Exit Inspection and Quarantine Bureau has asked pregnant women to avoid unnecessary trips to South America. It is suggested that Zika virus has an strong connection to primary microcephaly.

Symptoms of Zika virus, which spreads through mosquito bites, include fever, joint pain, rash, conjunctivitis, headache, muscle pain and eye pain.