{"id":49879,"date":"2025-02-21T11:55:00","date_gmt":"2025-02-21T10:55:00","guid":{"rendered":"https:\/\/www.klinik-st-georg.de\/klinik-st-georg\/zentrum-fuer-long-covid-behandlung\/symptome-und-diagnostik-bei-long-covid\/"},"modified":"2025-06-13T11:38:45","modified_gmt":"2025-06-13T09:38:45","slug":"symptoms-and-diagnosis-of-long-covid","status":"publish","type":"page","link":"https:\/\/www.klinik-st-georg.de\/en\/klinik-st-georg\/center-for-long-covid-treatment\/symptoms-and-diagnosis-of-long-covid\/","title":{"rendered":"Symptoms and Diagnosis of Long COVID"},"content":{"rendered":"

Do you feel exhausted after a COVID-19 infection?<\/h2>\n

After surviving COVID-19, post-viral fatigue may occur, which is not only due to the infection itself. COVID-19 infection often reactivates other opportunistic infections that may persist long after the acute phase of the disease.<\/p>\n

Download our extensive patient information here (61 pages, PDF):
\nPatient Information Long Covid Treatment (PDF)<\/a><\/p>\n

COVID-19 often Reactivates Opportunistic Infections<\/h3>\n

The most common opportunistic infections that can occur after a COVID-19 infection are:<\/p>\n

    \n
  1. Epstein Barr Virus (EBV)<\/strong> – possible symptoms: Fatigue, exhaustion, fever, flu-like symptoms, nausea, loss of appetite, swelling of lymph nodes, redness of skin, sore throat, weakness, muscle inflammation.<\/li>\n
  2. Cytomegalie-Virus (CMV)<\/strong> – possible symptoms: Tiredness, fatigue, fever, flu-like symptoms, swelling of lymph nodes, sore throat, enlarged spleen.<\/li>\n
  3. Herpes Simplex Virus 1\/2 (HSV 1\/2)<\/strong> – possible symptoms: Tiredness, fatigue, skin or mucous membrane blisters on mouth, lips, genitals, anus, flu-like symptoms (fever, muscle pain, swelling of lymph nodes), problems urinating, herpes keratitis (pain, sensitivity to light, flashes of light).<\/li>\n
  4. Varizella-Zoster-Virus 1\/2 (VZV)<\/strong> – possible symptoms: “Chickenpox” in young patients, “shingles” in adults: Blistering of the skin, fever, fatigue, loss of appetite, headache.<\/li>\n
  5. Humanes-Herpes-Virus 6 (HHV6)<\/strong> – possible symptoms: Roseola infantum (three-day fever) with high fever and rash.<\/li>\n
  6. Coxsackie-Virus<\/strong> – possible symptoms: Group A: Herpangina, acute hemorrhagic conjunctivitis, hand-foot-and-mouth disease; Group B: myocarditis, pericarditis, pleurodynia, hepatitis; groups A and B: fatigue, exhaustion, fever, rash, rickets, diarrhea, cough, conjunctivitis, loss of appetite, headache, night sweats, sweats, aseptic meningitis.<\/li>\n
  7. Chlamydia pneumoniae<\/strong> – possible symptoms: Fatigue, exhaustion, cough, mild sore throat, hoarseness, sinusitis, atypical pneumonia, meningoencephalitis, bronchiolitis obliterans, myocarditis, Guillain-Barre syndrome, arthritis, tenovaginitis.<\/li>\n
  8. Mycoplasma pneumoniae<\/strong> – possible symptoms: Fatigue, exhaustion, fever, joint pain, joint swelling, muscle pain, headache, insomnia, anxiety, emotional instability, difficulty concentrating, memory loss.<\/li>\n<\/ol>\n

    In addition to the opportunistic infection parameters, the diverse symptoms mentioned can also have various other causes. Persistent pulmonary or cardiac symptoms may also occur and require further evaluation.<\/p>\n

    In our Clinicum, we offer comprehensive diagnostics to rule out other diseases. We specialize in the examination of various laboratory parameters which allow a differential diagnosis to other causes.<\/p>\n

    Immunological Diagnostics at Clinicum St. Georg<\/h3>\n
      \n
    1. Fluorescent microscope examination<\/strong> for microclot and endotel damage<\/li>\n
    2. Immune profile<\/strong> – examination of the TH1\/TH2 immune response using natural killer cells and immunoglobulins IgG\/IgA\/IgM and their subclasses.
      \n<\/strong><\/li>\n
    3. Cytokine profile<\/strong> – inflammatory marker TNF-alpha and interleukin-6 in patients with neurological symptoms.
      \nANCA titre<\/strong> for the determination of autoantibodies in vasculitis or sinusitis and polyneuropathies, as part of additional infection diagnostics.
      \nT-cell test<\/strong> to assess the persistence of the SARS-CoV-2 pathogen and the sustained immune response.<\/li>\n<\/ol>\n

      Cardiologic Diagnostics<\/strong><\/p>\n

        \n
      1. NT-pro-BNP-marker for heart failure<\/li>\n
      2. Troponin for the assessment of myocardial damage<\/li>\n<\/ol>\n

        Diagnostik in Internal Medicine<\/strong><\/p>\n

          \n
        1. CRP as a general marker for inflammation<\/li>\n
        2. Cortisol<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

          Do you feel exhausted after a COVID-19 infection? After surviving COVID-19, post-viral fatigue may occur, which is not only due to the infection itself. COVID-19 infection often reactivates other opportunistic infections that may persist long after the acute phase of the disease. Download our extensive patient information here (61 pages, …<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":49867,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yst_prominent_words":[],"_links":{"self":[{"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/pages\/49879"}],"collection":[{"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/comments?post=49879"}],"version-history":[{"count":0,"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/pages\/49879\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/pages\/49867"}],"wp:attachment":[{"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/media?parent=49879"}],"wp:term":[{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/www.klinik-st-georg.de\/en\/wp-json\/wp\/v2\/yst_prominent_words?post=49879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}