Borrelia recurrentis

Borrelia recurrentis

Borrelia recurrentis is the causative agent of relapsing fever. They are gram-negative spirochetes and are transmitted via soft-shelled ticks.

Bacteroides spp.

Bacteroides spp.

Bacteroides spp. are obligate, anaerobic, gram-negative rods, non-sporing, non-motile, normal flora of human GI tract. It is a normal flora of the human GI tract but can infect areas below the diaphragm.

Corynebacterium diphtheriae

Corynebacterium diphtheriae

Diphtheria toxin is the key virulence factor. Exotoxin is produced only by strains of Corynebacterium diphtheriae that are lysogenized with bacteriophages that control the structural gene (tox gene) for toxin molecule

Rickettsia mooseri / Rickettsia typhi

Rickettsia mooseri / Rickettsia typhi

Rickettsia mooseri / Rickettsia typhi is the causative agent of endemic or murine typhus.

Rickettsia

Rickettsia

Rickettsia is gram-negative bacilli that are obligate, intracellular, fastidious bacteria. Rickettsia conorii, Rickettsia rickettsii, Rickettsia prowazekii, Rickettsia typhi, Rickettsia australis, Rickettsia sibirica are medically important.

Bunyavirus

Bunyavirus

Bunyavirus has high levels of morbidity and mortality, consequently handling of these viruses must occur with a Biosafety 4 laboratory.

Arterivirus

Arterivirus

Arteriviruses are positive-stranded RNA viruses that infect mammals and can cause persistent or symptomatic infections, but also acute diseases associated with a respiratory syndrome, abortion or lethal haemorrhagic fever

Torovirus

Torovirus

Torovirus primarily infects vertebrates- especially humans, cattle, pigs, and horses. It has been detected in diarrheic stool samples- prevalence rates of 22-35%. Respiratory problems viz, laryngitis, tracheitis, and pneumonia have also been documented with these viruses

Prion

Prion

Prions are the shortened term for Proteinaeous infectious particles. They are small infectious proteins that cause fatal neurodegeneration in humans and animals and have no detectable nucleic acid.

Hepatitis E virus

Hepatitis E virus

Hepatitis E virus is the primary cause of enterically transmitted non-A non-B hepatitis virus (NANBH). It is a non-enveloped, spherical, 32-34nm in diameter, positive ssRNA, genome enclosed within a capsid composed of 60 capsid proteins.