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C ONTENTS About Alta DiagnoTech 3 Overview of Infectious Disease Diagnostics 4 IVD Products for Infectious Diseases 1 2 Research Products for Infectious Disease Diagnostics 2 0 Collaboration Opportunities 21

About Alta DiagnoTech Your Premier Partner in Infectious Disease Diagnostics and Research At Alta DiagnoTech, we are dedicated to advancing the field of infectious disease diagnostics and research. Our mission is to provide highquality IVD products and research solutions that empower healthcare professionals and researchers to make accurate and timely decisions. We believe that early and precise diagnosis is crucial in the fight against infectious diseases, and our commitment to innovation and excellence drives us to continuously improve our offerings. Comprehensive Portfolio We are at the forefront...

Overview of Infectious Disease Diagnostics What is Infectious Disease Diagnostics? Infectious disease diagnostics refers to the systematic process of identifying pathogens—such as bacteria, viruses, fungi, or parasites—that cause diseases in humans. These diagnostics are critical for early detection, accurate treatment selection, and preventing disease spread. By analyzing biological samples (e.g., blood, saliva, or tissue), diagnostic tools detect specific markers, genetic material, or immune responses linked to infections, enabling clinicians to distinguish between different types of pathogens...

Overview of Infectious Disease Diagnostics General Laboratory Tests for Infectious Diseases Complete Blood Count (CBC) White Blood Cell (WBC) Count • Bacterial Infections: Elevated WBCs (leukocytosis) are typical in pyogenic infections like meningococcal meningitis, sepsis, and scarlet fever. However, Gramnegative infections (e.g., brucellosis, typhoid fever) may show normal or reduced WBCs. • Viral Infections: WBCs often decrease or remain normal (e.g., influenza, dengue, hepatitis), though exceptions like hemorrhagic fever with renal syndrome (HFRS) or Japanese encephalitis may present leukocytosis....

/ Overview of Infectious Disease DiagnosticsEtiologic Examination for Infectious Diseases Etiologic examination is the definitive approach to identifying pathogens causing infectious diseases by analyzing their biological characteristics, genetic material, or immune responses. The choice of method depends on pathogen size, distribution, and cultivation requirements, with the following key strategies: Direct Pathogen Detection Many infections can be diagnosed by visualizing pathogens via microscopy or macroscopic • Blood/Bone Marrow Smears: Detect Plasmodium (malaria), Leishmania, microfilariae,...

Overview of Infectious Disease Diagnostics General Laboratory Tests for Infectious Diseases Pathogen Isolation and Culture • Bacteria/Spirochetes/Fungi: Cultured on artificial media (e.g., Salmonella typhi, Vibrio cholerae, Leptospira, Cryptococcus). • Rickettsiae: Require animal inoculation (e.g., guinea pigs for Rickettsia prowazekii) or cell culture (e.g., Orientia tsutsugamushi). • Viruses: Isolated via cell culture (e.g., dengue virus in mosquito cells, poliovirus in Vero cells). • Specimen Collection: Blood, urine, feces, CSF, sputum, or bone marrow should be collected aseptically during...

/ Overview of Infectious Disease DiagnosticsGeneral Laboratory Tests for Infectious DiseasesNucleic Acid Amplification Tests (NAATs) Molecular techniques detect pathogen-specific DNA/RNA with high sensitivity: • Southern/Northern Blot: Use labeled probes to identify DNA/RNA fragments. • PCR/RT-PCR: Amplify viral (e.g., HIV, HCV) or bacterial (e.g., Mycobacterium tuberculosis) nucleic acids. • Real-Time PCR: Quantifies pathogen load and enables sequence analysis. • Advanced Methods: In situ PCR localizes nucleic acids in tissues; gene chips analyze multiple pathogens simultaneously. • This culture-independent...

Overview of Infectious Disease Diagnostics Specific Antibody Detection for Infectious Diseases Specific antibody detection, also known as serological testing, is a cornerstone of infectious disease diagnosis that identifies pathogen-specific antibodies (IgM/IgG) produced by the host immune system in response to infection. Unlike direct pathogen detection, which may be limited by low viral/bacterial loads or sampling challenges, antibody testing provides indirect evidence of infection by analyzing dynamic changes in antibody titers over time. Its clinical utility spans early diagnosis, confirmation...

Overview of Infectious Disease Diagnostics Specific Antibody Detection for Infectious Diseases Common Serological Methods • Enzyme-linked immunosorbent assay (ELISA): Most widely used due to high specificity (95–99%), sensitivity (90–98%), and scalability. Examples include HIV combo tests (detecting both p24 antigen and anti-HIV antibodies) and anti-Treponema pallidum (syphilis) screening. • Chemiluminescent immunoassay (CLIA): Automated high-throughput method with enhanced sensitivity (e.g., anti-SARS-CoV-2 IgG detection at low titers). • Western blot (WB): Confirmatory test for ambiguous ELISA...

/ Overview of Infectious Disease DiagnosticsOther Diagnostic Tests for Infectious DiseasesEndoscopic Examinations • Bronchoscopy: Used to visualize the airways and obtain samples for the diagnosis of respiratory infections, such as tuberculosis or pneumonia. • Gastroscopy: Helps in examining the upper gastrointestinal tract and obtaining biopsies for infections like Helicobacter pylori. • Colonoscopy: Useful for visualizing the colon and rectum, aiding in the diagnosis of intestinal infections and inflammatory conditions. • Ultrasonography: Provides detailed images of internal organs and can...

Alta DiagnoTech: Leading the Way in Infectious Disease Diagnostics Alta DiagnoTech stands at the forefront of clinical diagnostics, committed to delivering holistic solutions for the in vitro diagnosis of infectious diseases. Our company specializes in offering top-tier IVD reagents, kits, and advanced devices for viral, bacterial, fungal, and parasitic infections to meet your clinical diagnostic needs. With our cutting-edge point-of-care testing (POCT) products, we strive to streamline the process, enabling swift pathogen identification and timely interventions in the realm of infectious diseases....