Hepatitis D virus
Hepatitis D virus
Hepatitis D virus is an RNA virus. It is an incomplete virus and requires the presence of HBV to replicate and infect other hepatocytes. Hence, HDV infection occurs only in patients who suffer from HBV infection
Hepatitis C virus
Hepatitis C virus
Hepatitis C virus is an important cause of parenteral non-A, non-B hepatitis (NANBH) worldwide. It is spherical (50nm in diameter), enveloped, icosahedral nucleocapsid core, positive-sense ssRNA virus (9.4 kb)
Hepatitis B virus
Hepatitis B virus
Hepatitis B virus is the major cause of infectious hepatitis worldwide. it shows restricted host range and limited tissue tropism, and usually causes chronic disease and is associated with hepatocellular carcinoma.
Listeria monocytogenes
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Listeria monocytogenes
Listeria monocytogenes is an important human pathogen. They cause a foodborne disease called listeriosis. It occurs as a saprophyte in soil, water, sewage but has been isolated from milk, cheese, and other milk products.
Hepatitis A virus
Hepatitis A virus
Hepatitis A virus is a small, non-enveloped virus measuring 27 nm in diameter with icosahedral symmetry. It has a single-stranded positive-sense liner RNA genome which is approximately 7.5kb. The capsid consists of multiple copies of 3-4 proteins (VP1 to VP4).
Nocardia
Nocardia
Nocardiosis is an infection of the lung, brain, or skin by Nocardia spp. It is a localized or disseminated infection caused by aerobic actinomycetes Nocardia
Mycobacterium tuberculosis complex
Mycobacterium tuberculosis complex
The genus Mycobacterium consists of aerobic (some may require reduced O2 concentration), non-sporing, non-motile, very thin, slightly curved, or straight bacilli
Mycobacterium Leprae
Mycobacterium Leprae
Mycobacterium leprae causes leprosy, a chronic infectious disease that affects the skin, peripheral nerves, and mucosa of the upper respiratory and the eyes. It is the only mycobacterium known to cause infection of the nervous system in humans.
Bacteroides fragilis
Bacteroides fragilis
Bacteroides fragilis are obligate, anaerobic, gram-negative rods, non-sporing, non-motile, and infection caused by it occurs below the diaphragm.
Actinomyces
