Signs and symptoms
Pulmonary infection

Produces a virulent form of pneumonia (progressive)
Night sweats, fever, cough, chest pain
Pulmonary nocardiosis is subacute in onset and refractory to treatment with standard antibiotics
Symptoms are more severe in immunocompromised individuals
Radiologic studies show multiple pulmonary infiltrates, with a tendency to central necrosisNeurological infection

Headache, lethargy, confusion, seizures, sudden onset of neurological deficit
CT scan shows cerebral abscess
Nocardial meningitis is difficult to diagnoseCardiac conditions

Nocardia has been highly linked to endocarditis as a main manifestation
In recorded cases, it has caused damage to heart valves whether natural or prostheticLymphocutaneous disease

Nocardial cellulitis is akin to erysipelas but is less acute
Nodular lymphangeitis mimics sporotrichosis with multiple nodules alongside a lymphatic pathway
Chronic subcutaneous infection is a rare complication and osteitis may ensue
May be misidentified and treated as a staph infection, specifically superficial skin infections
Cultures must incubate more than 48 hours to guarantee an accurate testOcular disease

Very rarely, nocardiae cause keratitis
Generally there is a history of ocular traumaDisseminated nocardiosis

Dissemination occurs through the spreading enzymes possessed by the bacteria
Disseminated infection can occur in very immunocompromised patients
It generally involves both lungs and brain
Fever, moderate or very high can be seen
Multiple cavitating pulmonary infiltrates develop
Cerebral abscesses arise later
Cutaneous lesions are very rarely seen
If untreated, the prognosis is poor for this form of disease

Causes
Normally found in soil, these organisms cause occasional sporadic disease in humans and animals throughout the world. Another well publicized find is that of Nocardia as part of the oral microflora. Nocardia spp.
Aluminium chloride, also known as aluminium trichloride, is an inorganic compound with the formula AlCl3. It forms hexahydrate  with the formula [Al(H2O)6]Cl3, containing six water molecules of hydration. Both are colourless crystals, but samples are often contaminated with iron(III) chloride, giving a yellow color. The anhydrous material is important commercially. It has a low melting and boiling point. It is mainly produced and consumed in the production of aluminium metal, but large amounts are also used in other areas of the chemical industry. The compound is often cited as a Lewis acid. It is an example of an inorganic compound that reversibly changes from a polymer to a monomer at mild temperature. Structure
Anhydrous
AlCl3 adopts three structures, depending on the temperature and the state (solid, liquid, gas). Solid AlCl3 has a sheet-like layered structure with cubic close-packed chloride ions. In this framework, the Al centres exhibit octahedral coordination geometry. Yttrium(III) chloride adopts the same structure, as do a range of other compounds. When aluminium trichloride is in its melted state, it exists as the dimer Al2Cl6, with tetracoordinate aluminium. This change in structure is related to the lower density of the liquid phase (1.78 g/cm3) versus solid aluminium trichloride (2.48 g/cm3). Al2Cl6 dimers are also found in the vapour phase. At higher temperatures, the Al2Cl6 dimers dissociate into trigonal planar AlCl3 monomer, which is structurally analogous to BF3. The melt conducts electricity poorly, unlike more ionic halides such as sodium chloride.