-http://miniops.ioc.cat/9/data/2.html
-https://www.genome.gov/es/genetics-glossary/Bacteria
-https://www.renovablesverdes.com/ca/tipos-de-bacterias/
-https://www.slideshare.net/oribara/biologia-2n-batxillerat-ud16-els-microorganismes
-http://ve.scielo.org/scielo.php?script=sci_arttext&pid=S0798-04772008000200009
-https://junior-report.media/penicillina-descobriment-que-revolucionar-medicina/
-http://cienciesvirtuals.com/CN1ESO/T10/T10-Llibre.pdf
-https://es.khanacademy.org/science/biology/biology-of-viruses/virus-biology/a/intro-to-viruses
-http://www.cresa.cat/blogs/sociedad/origen-malaltia-vaques-boges/
-http://www.xtec.cat/~ajimeno/cn1eso/12protoctistes/12protoctistes.htm
-https://www.mayoclinic.org/es-es/diseases-conditions/malaria/symptoms-causes/syc-20351184
-https://medlineplus.gov/spanish/hivaids.html
-http://sexejoves.gencat.cat/ca/temes/contracepcio/metodes-contraceptius/el_preservatiu/
-https://historia.nationalgeographic.com.es/a/grandes-pandemias-historia_15178
-https://www.ecoceutics.com/ca/respostes-de-salut/salut/antibiotics/
-http://medicaments.gencat.cat/ca/ciutadania/informacio-i-consells/preguntes-frequents/antibiotics/
-https://www.saludsavia.com/contenidos-salud/otros-contenidos/antibiograma