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* Chronic non-forceful reflux of stomach contents past lower esophageal sphincter, pr * Chronic cough

*Cough, dyspnea, and fever, and occasionally weight loss, chest pain, and hemoptys *May be acute following aspiration of a large amount of oil, or chronic with repeated exposures over time

* Acute phase: diarrhea, abdominal pain, fever, cough, urticaria, hepatosplenomegaly, pulmonary abnormalities, and eosinophilia * Chronic phase: cough, sputum production, and hemoptysis

*See also [[chronic epiglottitis]] **Cough is rare

=== Chronic Management === *Chronic *Pseudomonas *infection defined as >50% of cultures positive for ''Pseud

* Respiratory exacerbation of chronic [[cystic fibrosis]] * Increased cough and sputum production

...smoke (wood, animal dung, coal, crop residues), organic or inorganic dust, chronic untreated asthma, air pollution *Dyspnea, chronic cough or sputum production

*Mostly from chronic aspiration *[[Chronic aspiration]] from any etiology

*Worsening respiratory symptoms, including dyspnea, cough, sputum production, or change in sputum *Dyspnea, cough

*Mosquito-borne infection by filarial parasites causing chronic progressive lymphedema *Causes a paroxysmal non-productive cough, more severe at night (during microfilaremia), with wheezing, low-grade fev

* Chronic cough, e.g. COPD * Repetitive strain, e.g. chronic constipation

*Most also develop cough, dyspnea, chest pain, and diffuse infiltrates on chest x-ray ===Chronic Schistosomiasis===

*High fever, severe headache, myalgia, non-producive cough, delirium *Often in the context of malnutrition, chronic illness, and poor hygeine

===Chronic Disease=== **Megaesophagus, with dysphagia, odynophagia, chest pain, cough, and regurgitation

...est risk for requiring hospitalization is premature infants and those with chronic lung disease, congenital heart disease, immunosuppression, and neuromuscula * Wheezing and increased work of breathing are common and cough becomes prominent

*** Chronic infection * Chronic cough (98%)

...COVID-19 (PASC), post-acute COVID-19 syndrome (PACS), long, long-haul, or chronic COVID *At 2 months, about 2/3 had symptoms, with 33 to 37% having cough or dyspnea and 13 to 23% has dysgeusia or anosmia[[CiteRef::chopra2020si]][

*Trigger-induced wheeze, dyspnea, cough, or chest tightness *Chronic cough

* Subacute or [[chronic cough]] (at least 2 to 3 weeks) eventually becoming productive and occasionally i ** Should be suspected in any patient with '''cough and [[HIV]] infection'''

*T-cells are involved, with chronic infection in patients who are CD4-deplete *However, recurs in about 40% and can become an intermittent or chronic diarrhea similar to irritable bowel syndrome

**Chronic Q fever can be up to 6 months *Palpable purpura can be seen in chronic Q fever (that is, endocarditis)

*Chronic renal failure **Typically subacute onset with fever, cough, and fatigue, as well as pleuritic chest pain

*Acute onset of cough (92%), fatigue (63%), shortness of breath (47%), and dyspnea (23%) with doc ...disease]]''', '''[[chronic liver disease]]''' including [[cirrhosis]], and chronic lung disease including [[asthma]] requiring medical care within past 12 mon

*Fever, cough, pleuritic chest pain *Chronic empyema that drains through chest wall

*Fever, chill, malaise, headaches, myalgias, anorexia, cough, dyspnea, and chest pain ===Chronic Progressive Disseminated Histoplasmosis===

*Highly contagious virus that causes a '''triad of cough, coryza, and conjunctivitis''' ...ys]]), followed by several days of prodrome that includes fever, anorexia, cough, coryza, and conjunctivitis

**Pulmonary: cough, chest pain *Pulmonary infection may present as an acute pneumonia to a chronic pneumonia with fibronodular or fibrocavitary appearance

* Subacute or chronic cough, dyspnea, fever, with or without pleuritic chest pain

| up to 2 weeks (rarely 4 weeks, with very rare asymptomatic chronic shedders) | greatest during catarrhal period and first 2 weeks after cough onset; no longer contagious after 5 days of antibiotics

*[[Otomycosis]]: chronic otitis externa caused by ''A. niger'' or ''A. fumigatus'' === Chronic Pulmonary Aspergillosis (CPA) ===

*A chronic immunodeficiency resulting from infection with the human immunodeficiency v ...non-tuberculous mycobacteria, progressive multifocal leukoencephalopathy, chronic cryptosporidiosis or isosporiasis, disseminated endemic mycosis, CNS lympho

*[[Pleural effusion]], [[chronic cough]], [[interstitial lung disease]], [[pulmonary hypertension]]

* Typically presents with non-specific subacute to chronic respiratory syndrome ** Productive cough, weight loss, fevers, night sweats

**'''Inherited severe immunodeficiency''', such as [[chronic granulomatous disease]], [[STAT 3 deficiency]], or [[severe combined immuno **Inherited severe immunodeficiency (such as chronic granulomatous disease, STAT 3 deficiency, CARD9 deficiency, STAT-1 gain of

|[[Achalasia]], chronic vomiting, exogenous lipoid pneumonia *Nonspecific chronic or subacute respiratory syndrome with prominent cough

**COPD and other chronic lung disorders *Worsening exertional dyspnea, fever, and non-productive cough

*Main presenting symptoms were [[fever]] and [[cough]], followed by [[myalgia]], [[fatigue]], [[headache]], [[dyspnea]] **Chronic respiratory disease, including [[cystic fibrosis]]

*Source factors, such as sputum smear positivity, cough, cavitations *Possible presentations include mild URTI with cough and/or fever

*Major reservoir is as a chronic kidney infection in animals, especially rodents **[[Measles virus]], with cough and conjunctivitis

**May also have cough, myalgias, chest discomfort, vomiting, sore throat, abdominal pain, and dia *Patient often has an underlying chronic disease