Archive puzzle
Doctordle #80
Immune system virus with falling CD4 cells
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Sourced case summary
Open the full case notes after playing. The text is also rendered in the page HTML so search engines can understand the archived puzzle.
Case summary
This archived Doctordle case was published on 2026-06-19. It presents "Immune system virus with falling CD4 cells" as a Medium Infectious Disease puzzle. The final answer is HIV.
Answer
HIV
Source
Topic pages verified on 2026-07-11
Information summarized from MedlinePlus.gov. MedlinePlus does not endorse Doctordle.
Six clues
Clue 1
A blood test in this fictional case detects a chronic viral infection.
Clue 2
The virus targets important immune cells.
Clue 3
CD4 count is part of the teaching clue.
Clue 4
Without control, the immune system can become severely weakened.
Clue 5
The abbreviation has three letters.
Clue 6
The later syndrome is often written after a slash with the virus name.
Plain-language explanation
HIV is a virus that attacks the immune system, especially CD4 cells. This puzzle uses the abbreviation, immune-cell clue, and HIV/AIDS wording as educational signals.
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