title: Proving Zika link to birth defects poses huge challenge.
authors: Erika
authors: E
authors: Check Hayden
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis / Q000276:immunology; D035843:Biomedical Research / Q000639:trends*; D001938:Brazil / Q000453:epidemiology; D016022:Case-Control Studies; D004195:Disease Models, Animal; D019317:Evidence-Based Medicine; D005260:Female; D005315:Fetal Diseases / Q000453:epidemiology / Q000209:etiology / Q000821:virology; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology / Q000209:etiology / Q000821:virology; D018445:Infectious Disease Transmission, Vertical; D008831:Microcephaly / Q000453:epidemiology / Q000209:etiology* / Q000473:pathology / Q000821:virology*; D011247:Pregnancy; D013997:Time Factors; D000071244:Zika Virus / Q000235:genetics / Q000276:immunology / Q000302:isolation & purification / Q000472:pathogenicity*; D000071243:Zika Virus Infection / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology / Q000821:virology*
chemical_list: D000914:Antibodies, Viral