serogroup /sēˈrō-groop/

Any group of bacteria or other microorganisms (which may comprise several serotypes) that have a certain antigen in common

• aperture
• aperture priority
• apertures
• apery
• aperçu
• aperçus
• apes
• apeshit
• apetalies
• apetalous
• apetaly
• apex
• APEX
• Apex
• apexes
• Apex Trust
• Apgar score
• Apgar test
• aphaeresis
• aphagia
• aphagias
• aphakia
• Aphaniptera
• aphanipterous
• aphanite