Related Articles A case of COVID 19 and pneumonia returning from Macau in Taiwan Clinical course and anti SARS CoV 2 IgG dynamic J Microbiol Immunol Infect 2020 Mar 10 Authors Lee NY Li CW Tsai HP Chen PL Syue LS Li MC Tsai CS Lo CL Hsueh PR Ko WC Abstract A 46 year old woman presented to the emergency department with 2 day fever and cough at seven days after returning from Macau COVID 19 and pneumonia was diagnosed based on the positive real time RT PCR tests for oropharyngeal swab samples and the presence of anti SARS COV 2 IgG starting from the illness day 11 and post exposure 18 21 days PMID 32198005 PubMed as supplied by publisher