Although patients with stage 1 X-rays tend to have the acute or subacute, reversible form of the disease, those with stages 2 and 3 often have the chronic, progressive disease ; these patterns do not represent consecutive " stages " of sarcoidosis.

Historically, infective endocarditis has been clinically divided into acute and subacute presentations ( because untreated patients tended to live longer with the subacute as opposed to the acute form ).

* Subacute sclerosing panencephalitis: Chronic infection of the brain by a form of the measles virus causes subacute sclerosing panencephalitis.

May have a recurrent fever and anemia, may relapse to the subacute or acute form even several years after the original attack.

The subacute, or intermittent, form produces more well-formed noncaseating granulomas, bronchiolitis with or without organizing pneumonia, and interstitial fibrosis.

These include deficiencies of vitamin B < sub > 12 </ sub >, folate or niacin, and infective causes including cryptococcal meningitis, HIV, Lyme disease, progressive multifocal leukoencephalopathy, subacute sclerosing panencephalitis, syphilis and Whipple's disease.

* Osler's nodes are raised tender nodules on the pulps of fingertips or toes, an autoimmune vasculitis that is suggestive of subacute bacterial endocarditis.

* Infections: tuberculosis, brucellosis, listeriosis, subacute bacterial endocarditis, syphilis, and other viral infections and many protozoal and rickettsial infections ( e. g. kala azar, malaria, Rocky Mountain spotted fever ).

In subacute endocarditis, where patient's hemodynamic status is usually stable, antibiotic treatment can be delayed till the causative microorganism can be identified.

Roth's spots may be observed in leukemia, diabetes, subacute bacterial endocarditis, pernicious anaemia, ischemic events, and rarely in HIV retinopathy.

Osler's lesions found on the hand and fingers of a 43 year old male with subacute bacterial endocarditis.

The nodes are commonly indicative of subacute bacterial endocarditis.

Less virulent strains can give rise to subacute or chronic infections that may escape detection, while still causing abortions and stillbirths.

* Intensive multidisciplinary treatment programs may help subacute or chronic low back pain.

It has been found that terbinafine hydrochloride may induce or exacerbate subacute cutaneous lupus erythematosus.

It is also known as Kikuchi disease, histiocytic necrotizing lymphadenitis, Kikuchi necrotizing lymphadenitis, phagocytic necrotizing lymphadenitis, subacute necrotizing lymphadenitis, and necrotizing lymphadenitis

It is also used to treat rheumatoid arthritis ( subacute type ) and intercostal neuralgia.

The anemia can also lead to subtle demyelinative neurological symptoms ( subacute combined degeneration of spinal cord ).

Tears are also sometimes classified as acute, subacute, and chronic based on the trauma that caused the injury:

* Wernicke-Korsakoff syndrome, also called Korsakoff psychosis: a subacute dementia syndrome, often following Wernicke encephalopathy, characterized clinically by confabulation and clinicopathologically correlated with degeneration of the mammillary bodies.

Possible causes include brain infection ( viral encephalitis, subacute sclerosing panencephalitis, Whipple's disease ) or inflammation ( limbic encephalitis, Hashimoto's encephalopathy, cerebral vasculitis ); tumors such as lymphoma or glioma ; drug toxicity ( e. g. anticonvulsant drugs ); metabolic causes such as liver failure or kidney failure ; and chronic subdural hematoma.

causes mostly subacute or chronic granulomatous amoebic encephalitis ( GAE ), with a clinical picture of headaches, altered mental status, and focal neurologic deficit, which progresses over several weeks to death.

It typically happens in the subacute setting after a myocardial infarction ( heart attack ), in which the infarcted muscle of the heart thins out and tears.

A complication of severe chronic PA is subacute combined degeneration of spinal cord, which leads to distal sensory loss ( posterior column ), absent ankle reflex, increased knee reflex response, and extensor plantar response.

* Wernicke encephalopathy: an acute neurological syndrome of ophthalmoparesis, ataxia, and encephalopathy brought on by encephalopathy can occur combined with Korsakoff psychosis, which is a subacute dementia syndrome.

This can cause multiple subacute avulsion fractures along with inflammation of the tendon, leading to excess bone growth in the tuberosity and producing a visible lump which can be very painful when hit.

* Creutzfeldt-Jakob disease, a subacute spongiform encephalopathy caused from prions involving the cerebral cortex, the basal ganglia and the spinal cord.

Others apply acute to pain that lasts less than 30 days, chronic to pain of more than six months duration, and subacute to pain that lasts from one to six months.

A cold bath is a popular treatment of subacute injuries or inflammation, muscular strains, and overall muscular soreness, but its efficacy is controversial.

3. subacute rhinosinusitis — an infection that lasts between four and 12 weeks, and represents a transition between acute and chronic infection ;

They practice in acute care facilities, long-term acute care facilities, skilled nursing facilities, assisted-living centers, subacute care units, rehabilitation centers, diagnostics units, and in the home.

The adoption of ribavirin as a possible treatment for canine distemper followed the same steps as vitamin A ; it was the principle used in cases of subacute sclerosing panencephalitis under measles.

* Vitamin B12 deficiency leads to megaloblastic anemia and subacute combined degeneration of spinal cord.

Others apply acute to pain that lasts less than 30 days, chronic to pain of more than six months duration, and subacute to pain that lasts from one to six months.

Compartment syndrome most often involves the forearm and lower leg, and can be divided into acute, subacute, and chronic compartment syndrome.

Acute and subacute side effects usually resolve over a matter of days or a few weeks.

In acute and subacute cases, physical examination usually reveals dry rales.

It has a subacute to acute course.

A patient who has contracted this illness usually displays subacute symptoms, including altered mental status, headaches, fever, neck stiffness, seizures, focal neurological signs ( such as cranial nerve palsies and coma ), all leading to death within one week to several months.

A 2007 review published in the journal Annals of Internal Medicine concluded low-level laser therapy has " not been shown to be effective for either chronic or subacute or acute low back pain ; and a 2008 Cochrane collaboration review concluded that there was insufficient evidence to support the use of LLLT in the management of low back pain.

For example peanut agglutinin binds a particular lipophosphoglycan found on the surface of the infective form of Leishmania major.

Nosocomial endocarditis is a form of healthcare associated endocarditis in which the infective organism is acquired during stay in a hospital and it is usually secondary to presence of intravenous catheters, Total parenteral nutrition lines, pacemakers, etc.

A form of R .. prowazekii that exists in the feces of arthropods remains stably infective for months.

Microscopic appearance of an old culture of Coccidioides immitis, showing fragmented chlamydospore s. This is the infective form of the fungus occurring in nature.

L3 is the filariform stage of the parasite, that is, the non-feeding infective form of the larvae.

The juvenile stage 2 molts once more until reaching the juvenile 3 stage, which is also called filariform ; this is also the infective form.

Inside fleas, eggs hatch and form oncosphere larvae that move through the wall of the flea intestine into the body cavity where they become cysticercoid larvae, which are infective to mammal hosts.