Subject: Science and tech Context:  The prevalence of HIV/AIDS among antenatal women has dropped from 0.27% to 0.18% in Tamil Nadu, according to the findings of the recent HIV Sentinel Surveillance 2019. Concept : HIV attacks CD4, a type of White Blood Cell (T cells)in the body’s immune system. T cells are those cells that […]

Subject: Science & tech Context :  The prevalence of HIV/AIDS among antenatal women has dropped from 0.27% to 0.18% in Tamil Nadu, according to the findings of the recent HIV Sentinel Surveillance 2019. Concept : HIV attacks CD4, a type of White Blood Cell (T cells)in the body’s immune system. T cells are those cells […]