[[Image:Petit Sammy éternue.jpg|right|thumb|250px|''Little Sammy Sneeze'' oleh [[Winsor McCay]]]]
'''Bersin''' adalah suatu pengeluarankeluarnya [[udara]] semi otonom yang terjadi dengan keras lewat [[hidung]] dan [[mulut]]. Udara ini dapat mencapai kecepatan 70 m/detik (250 km/jam). Bersin dapat menyebarkan penyakit lewat butir-butir air yang terinfeksi yang diameternya antara 0,5 hingga 5 [[µm]]. Sekitar 40.000 butir air seperti itu dapat dihasilkan dalam satu kali bersin.<ref>Cole EC, Cook CE. Characterization of infectious aerosols in health care facilities: an aid to effective engineering controls and preventive strategies. ''Am J Infect Control.'' 1998 Aug;26(4):453-64. Sneezing can transmit many diseases PMID 9721404</ref>
== Sains ==
* [[Bahasa Eslandia]] "''Atsjú''" (diucapkan "achoo").
* [[Bahasa Somali]] "''Hindis''"
* [[Bahasa Gimerish]] "''Gimer''" (diucapkan "loogee").
=== Tanggapan tradisional bila seseorang bersin ===
Di negara-negara berbahasa Inggris, kadang-kadang juga digunakan kata bahasa Jerman "Gesundheit" (yang berarti ''kesehatan'') setelah seseorang bersin. Dalam bahasa Spanyol, orang mengatakan "Salud", yang juga berarti kesehatan.
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*In [[AzerbaijaniBahasa language|AzerbaijaniAzerbaijan]], sneezingbersin isbiasanya usuallydiikuti followedoleh by replyingjawaban ""Saglam ol"" whichyang meansberarti "besemoa Anda healthysehat"
*In [[ItalianBahasa language|ItalianItalia]], sneezingbersin isdiikuti usuallyoleh followed by replyingjawaban ""Salute""
* InDalam Portuguesebudaya-speakingbudaya culturesberbahasa Portugis, sneezingbersin isdiikuti usuallyoleh followedjawaban by replying "Saúde", ("HealthSehat"), or byatau "Santinho" ("littlesanto saintkecil"), otherslainnya saymengatakan "JesusYesus". TheYang sneezerbersin thenkemudian respondsmenjawab "Obrigado" oratau "Obrigada" (thankterima youkasih).
*In Dalam budaya [[Spanishbahasa languageSpanyol|Spanishberbahasa Spanyol]]-speaking cultures, sneezingbersin isbiasanya usuallydiikuti followedoleh by replyingjawaban "''Salud''", ("[[HealthKesehatan|Semoga Anda sehat]]") alsojuga indi sometempat-tempat placestertentu theymereka saymengatakan "''Jesús''" (likeYesus) (seperti indi [[SpainSpanyol]]). TheOrang sneezeryang thenbersin respondskemudian menjawab "''Gracias''" (thankterima youkasih).
<!--*However, in [[Puerto Rico]], it is also common for someone to reply to a 2nd and 3rd sneeze with "''Dinero''" ("[[Money]]") and "''Amor''" ("[[Love]]"), respectively, after the initial "''Salud''".
*In Brazilian-[[Portuguese language|Portuguese]], sneezing is usually followed by replying "''Saúde''", ("[[Health]]"), and also "''Santinho''" meaning "Bless you".
*In [[Bulgarian Language|Bulgarian]], sneezing is usually followed by replying "''Наздраве!''", (''Nazdrave'', meaning "to [your good] health", which is answered by "Мерси" (Merci) or "Благодаря" ("Blagodarya") meaning "Thank you").
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