EBOLA | TUBERCULOSIS

Scientific concepts / discoveries / nature phenomena

Ebola (communicable disease)

• Causative agent: Ebola virus
• Strains mentioned:
  • Sudan Ebola virus
  • Reston Ebola virus (noted as present in the Philippines)
  • Forest Ebola virus
• Incubation period: 2 to 21 days

• Modes of transmission (2):

  • Contact transmission
    • Through contact with secretions of an infected human
    • “Secretion” defined in the video as anything the body produces/releases
    • Exception noted: sweat is accepted/exempted (suggesting it is not infectious in this explanation)
  • Vector transmission
    • Video mnemonic for potential animal carriers:
      • C: chimpanzee
      • G: gorilla
      • F: fruit bat
      • M: monkey
      • A: antelope
      • B: percupine (spelled this way in the subtitle; intended as “porcupine”)

• Signs and symptoms:

  • Similar to influenza and measles
  • Fever
  • Myalgia (muscle pain)
  • Arthralgia (joint pain)
  • Bleeding rashes
  • Bleeding from orifices (“holes” in the body), e.g.:
    • eye, mouth, nose, ears, and “private parts” (as stated)
• Diagnostic procedure:
  • RT-PCR: detects Ebola viral RNA in a patient specimen (including RNA from different strains)
• Management / nursing management:
  • Paracetamol for fever/pain (as stated)
  • Tepid sponge bath (TSB)
  • Hydration / oral fluids to help prevent hypovolemic shock
  • Blood transfusion if necessary (to prevent consequences of blood/volume loss)
  • Pain relievers for muscle/joint pain

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Tuberculosis (TB) (communicable disease)

• Disease type: a respiratory tract infection
• Another name mentioned: “cox infection” (likely intended “TB/TB infection”; subtitle text is unclear)
• Causative agent: 3 bacterial species of Mycobacterium:
  • Mycobacterium tuberculi(ne)
  • Mycobacterium africanum
  • Mycobacterium bovis
• Incubation period: 2 to 10 weeks
• Modes of transmission:
  • Airborne transmission (stated “even when there is no sunlight”)
  • Droplet transmission via patient secretions
  • Also said: droplets via urine
  • Close contact transmission mentioned
  • Rationale given in the video: sunlight exposure kills the bacteria “immediately”
• Signs and symptoms:
  • Triad / “pathognomonic sign” described as:
    • Hemoptysis (coughing up blood)
    • Night sweats
    • Night fever (fever at night)
  • Additional associated symptoms:
    • Anorexia and significant weight loss
    • Cough not improving (lasting > 2 weeks)
    • Chest pain
• Diagnostic procedures / tests:
  • Confirmatory test: GeneXpert (gene expert)
    • Explained as similar to PCR
    • Detects mycobacterium DNA in a specimen
  • Alternative: Sputum microscopy
    • Specimen is sputum (subtitle also references saliva)
    • Collection/analysis by medtech/medical technologists and microscopists
    • If unavailable, Barangay Health Workers (BHWs) collect in faraway areas
  • Contraindication for sputum collection (as stated):
    • Hemoptysis / blood in sputum → specimen usually considered invalid
    • Guidance given:
      • have patient rest, NPO for at least 1 hour, reassess
      • if still hemoptysis → send/return for further care
      • Massive hemoptysis → immediate hospital referral, described as possible bronchial tree rupture
  • Skin test mentioned: PPD/Mantoux (MANTU/MANtO)
    • PPD = purified protein derivative
    • Result reading: after 48–72 hours
    • “Wheel” size interpretation given:
      • ≥ 10 mm: exposure (in the non-immunocompromised explanation)
      • ≥ 5 mm: exposure (if immunocompromised)
• Prevention and control:
  • Vaccination: BCG (given when young, as stated)
  • Direct sunlight exposure of items used by a TB-positive patient
    • To kill particles on reusable utensils
• Nursing management:
  • Antibiotic regimen (multi-drug) mentioned as given together:
    • Rifampin
    • Isoniazid
    • Pyrazinamide
    • Ethambutol
    • (Subtitles mention these as antibiotics; additional names/typos appear but these four are clearly referenced.)
  • Rationale stated: given together to prevent drug resistance
  • Side effects & nursing counseling:
    • Rifampin: body secretions (tears/urine/saliva) turn red-orange
      • Advice: avoid contact lenses
    • Isoniazid: peripheral neuropathy (tingling/prickly feeling)
      • Advice: vitamin B6
    • Pyrazinamide: hyperuricemia (subtitle says “hyperasemia”)
      • Advice: increase fluid/oral intake
    • Ethambutol: optic neuritis / temporary color blindness
      • Advice: don’t stop abruptly; contact healthcare provider immediately if side effects occur
  • Monitoring:
    • Check liver function (to ensure drugs are excreted)
  • Nutrition:
    • Increase caloric diet (to regain weight lost from chronic cough)
  • Procedural restriction:
    • Avoid chest physiotherapy (subtitles claim inactive TB may become active)
  • Directly Observed Treatment, Short-course (DOTS):
    • “TV dots” described as direct observation treatment short course
    • Patient monitored to ensure medication adherence
    • Patient takes meds at RHU, health provider checks ingestion
    • Rationale given: poor compliance increases TB cases

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Researchers / sources featured (at end)

• No specific external researchers or sources were named in the subtitles.