"paziente zero" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "en",
        "3": "patient zero"
      },
      "expansion": "Calque of English patient zero",
      "name": "calque"
    }
  ],
  "etymology_text": "Calque of English patient zero.",
  "forms": [
    {
      "form": "pazienti zero",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "+first"
      },
      "expansion": "paziente zero m (plural pazienti zero)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "it",
          "name": "Epidemiology",
          "orig": "it:Epidemiology",
          "parents": [
            "Medicine",
            "Biology",
            "Healthcare",
            "Sciences",
            "Health",
            "All topics",
            "Body",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "patient zero"
      ],
      "id": "en-paziente_zero-it-noun-Lp2BKXB0",
      "links": [
        [
          "epidemiology",
          "epidemiology"
        ],
        [
          "patient zero",
          "patient zero"
        ]
      ],
      "raw_glosses": [
        "(epidemiology) patient zero"
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "epidemiology",
        "medicine",
        "sciences"
      ]
    }
  ],
  "word": "paziente zero"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "en",
        "3": "patient zero"
      },
      "expansion": "Calque of English patient zero",
      "name": "calque"
    }
  ],
  "etymology_text": "Calque of English patient zero.",
  "forms": [
    {
      "form": "pazienti zero",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "m",
        "2": "+first"
      },
      "expansion": "paziente zero m (plural pazienti zero)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian masculine nouns",
        "Italian multiword terms",
        "Italian nouns",
        "Italian nouns with red links in their headword lines",
        "Italian terms calqued from English",
        "Italian terms derived from English",
        "Pages with 1 entry",
        "Pages with entries",
        "it:Epidemiology"
      ],
      "glosses": [
        "patient zero"
      ],
      "links": [
        [
          "epidemiology",
          "epidemiology"
        ],
        [
          "patient zero",
          "patient zero"
        ]
      ],
      "raw_glosses": [
        "(epidemiology) patient zero"
      ],
      "tags": [
        "masculine"
      ],
      "topics": [
        "epidemiology",
        "medicine",
        "sciences"
      ]
    }
  ],
  "word": "paziente zero"
}