Global Diagnostic Kits Market by Product & Service (Assay, Kit & Reagent, Instruments), Disease Type (Hepatitis A, B, HIV, Hospital Acquired Infections, Human Papillomavirus, Tuberculosis, Influenza and Other), Technology (Immunodiagnostics, PCR, NGS), End User (Hospital, Research Institute) - Market Research Report 2021 : Covid 19 Impact Outlook, Regional Analysis, Competitive Landscape, Growth Prospects & Forecast 2020-2026