Coronavirus disease 2019 (COVID-19) caused by the new coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in early December 2019, Wuhan city, capital city of Hubei Province. This virus spread easily and rapidly worldwide. A lot serology testing for COVID-19 are now available, very powerful tools to understand immune response SARS-CoV-2, vaccine efficacy, hard immun...

Syphilis serology is a basic screening test for the workers who want to go abroad. Many countries reject migrant workers who have reactive syphilis serology. Biological false reactives warrant repeated syphilis serology. We prospectively studied 30 patients (25 males and 5 females) who had biological false reactive VDRL tests (VDRL reactive, confirmatory TPHA negative). Affirmative tests for sy...

79/F Pneumonic Serology Gm 500 for 18 d Yes; yes 48/M Ulceroglandular Culture Gm 750 for 28 d Yes; no 65/F Typhoidal Serology 750 for 14 d No 65/F Ulceroglandular Serology 750 for 28 d No 40/F Ulceroglandular Serology Dox 750 for 28 d Yes; no 38/F Ulceroglandular Serology 750 for 10 d Yes 47/F Oculoglandular Serology Dox, Gm 750 for 28 d Yes; yes; yes 65/F Ulceroglandular Serology Dox 750 for 2...