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    • What Is Serum Sickness?

      What Is Serum Sickness?

      Verywell Health via Yahoo News· 1 year ago

      An Immune System Response to Nonhuman Proteins juanma hache / Getty Images Medically reviewed by Jurairat J. Molina, MD Serum sickness and serum...

    • What Is a Sun Allergy?

      What Is a Sun Allergy?

      Health via Yahoo News· 11 months ago

      The Photo Commune / Getty Images Medically reviewed by Corinne Savides Happel, MD You can be allergic to the sun. A sun allergy—sometimes also called...

    • What Is Allergic Rhinitis?

      What Is Allergic Rhinitis?

      Health via Yahoo News· 2 months ago

      Guillermo Spelucin / Getty Images Medically reviewed by Corinne Savides Happel, MD Allergic rhinitis is the inflammation of nasal passageways that occurs...

    • What is penicillin, and how was it discovered?

      What is penicillin, and how was it discovered?

      Live Science via Yahoo News· 10 months ago

      Multiple Penicillium molds on petri dish The antibiotic penicillin is made by various Penicillium molds, as seen growing in this petri dish. (Image...