diff --git a/data/nextstrain/flu/h5n1/seg1/PB2.fasta b/data/nextstrain/flu/h5n1/seg1/PB2.fasta
deleted file mode 100644
index ec7151df..00000000
--- a/data/nextstrain/flu/h5n1/seg1/PB2.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MERIKELRDLMSQSRTREILTKTTVDHMAIIKKYTSGRQEKNPALRMKWMMAMKYPITADKRIMEMIPERNEQGQTLWSKTNDAGSDRVMVSPLAVTWWNRNGPTTSTVHYPKVYKTYFEKVERLKHGTFGPVHFRNQVKIRRRVDINPGHADLSAKEAQDVIMEVVFPNEVGARILTSESQLTITKEKKEELQDCKIAPLMVAYMLERELVRKTRFLPVAGGTSSVYIEVLHLTQGTCWEQMYTPGGEVRNDDVDQSLIIAARNIVRRATVSADPLASLLEMCHSTQIGGIRMVDILRQNPTEEQAVDICKAAMGLRISSSFSFGGFTFKRTNGSSVKKEEEVLTGNLQTLKIKVHEGYEEFTMVGRRATAILRKATRRLIQLIVSGRDEQSIAEAIIVAMVFSQEDCMIKAVRGDLNFVNRANQRLNPMHQLLRHFQKDAKVLFQNWGIEPIDNVMGMIGILPDMTPSAEMSLRGVRVSKMGVDEYSSTERVVVSIDRFLRVRDQQGNVLLSPEEVSETQGTEKLTITYSSSMMWEINGPESVLVNTYQWIIRNWETVKIQWSQDPTMLYNKMEFESFQSLVPKAARSQYSGFVRTLFQQMRDVLGTFDTVQIIKLLPFAAAPPEPSRMQFSSLTVNVRGSGMRILVRGNSPVFNYNKATKRLTVLGKDAGALTEDPDEGTAGVESAVLRGFLILGREDKRYGPALSINELSNLAKGEKANVLIMQGDVVLVMKRKRDFSILTDSQTATKRIRMAIN
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg2/PB1.fasta b/data/nextstrain/flu/h5n1/seg2/PB1.fasta
deleted file mode 100644
index 575185ff..00000000
--- a/data/nextstrain/flu/h5n1/seg2/PB1.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MDVNPTLLFLKVPAQNAISTTFPYTGDPPYSHGTGTGYTMDTVNRTHQYSEKGKWTTNTETGAPQLNPIDGPLPEDNEPSGYAQTDCVLEAMAFLEESHPGIFENSCLETMEVVQQTRVDKLTQGRQTYDWTLKRNQPAATALANTIEVFRSNGLTANESGRLIDFLKDVMESMDKGEMEIITHFQRKRRVRDNMTKKMVTQRTIGKKKQRLNKRSYLIRALTLNTMTKDAERGKLKRRAIATPGMQIRGFVYFVETLARSICEKLEQSGLPVGGNEKKAKLANVVRKMMTNSQDTELSFTITGDNTKWNENQNPRMFLAMITYITRNQPEWFRNVLSIAPIMFSNKMARLGKGYMFESKSMKLRTQIPAEMLASIDLKYFNESTRKKIEKIRPLLIDGTASLSPGMMMGMFNMLSTVLGVSILNLGQKRYTKTTYWWDGLQSSDDFALIVNAPNHEGIEAGVDRFYRTCKLVGINMTKKKSYINRTGTCEFTSFFYRYGFVANFSMELPSFGVSGINESADMSIGVTVIKNNMMDNDLGPATAQMALQLFIKDYRYPYRCHRGDTQIQTRRSFELKKLWEQTRSKAGLLVSDGGPNPYNIRNLHIPEAGLKWELMDEDYQGRLCNPLNPFVSHKEIESVNNAVVMPAHGPAKSMEYDAVATTHSWIPKRNRSILNTSQRGILEDEQMYQKCCNLFEKFFPSSSYRRPVGISSMVEAMVSRARIDARIDFESGRIKKEEFAEIMKICSTIEELGRQK
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg3/PA.fasta b/data/nextstrain/flu/h5n1/seg3/PA.fasta
deleted file mode 100644
index c6661f59..00000000
--- a/data/nextstrain/flu/h5n1/seg3/PA.fasta
+++ /dev/null
@@ -1,2 +0,0 @@
-MEDFVRQCFNPMIVELAEKAMKEYGEDPKIETNKFAAICTHLEVCFMYSDFHFIDERGESTIIESGDPNALLKHRFEIIEGRDRTMAWTVVNSICNTTGVEKPKFLPDLYDYKENRFIEIGVTRREVHTYYLEKANKIKSEKTHIHIFSFTGEEMATKADYTLDEESRARIKTRLFTIRQEMASRGLWDSFRQSERGEETVEERFEITGTMCRLADQSLPPNFSSLEKFRAYVDGFEPNGCIEGKLSQMSKEVNARIEPFLKTTPRPLRLPDGPPCSQRSKFLLMDALKLSIEDPSHEGEGIPLYDAIKCMKTFFGWKEPNIVKPHEKGINPNYLLAWKQVLAELQDIENEEKIPKTKNMRKTSQLKWALGENMAPEKVDFEDCKDVSDLRQYDSDEPKPRSLASWIQSEFNKACELTDSSWIELDEIGEDVAPIEHIASMRRNYFTAEVSHCRATEYIMKGVYINTALLNASCAAMDDFQLIPMISKCRTKEGRRKTNLYGFLIKGRSHLRNDTDVVNFVSMEFSLTDPRLEPHRWEKYCVLRIGDMLLRTEIGQVSRPMFLYVRTNGTSKIKMKWGMEMRRCPFQSLQQIESMIEAESSVKEKDMTKEFFENKSETWPIGESPKGVEEGSIGKVCRTLLAKSVFNSLYASPQLEGFSAESRKLLLIVQALRDNLEPGTFDLGGLYEAIEECLINDPWVLLNASWFNSFLTHALR
-
diff --git a/data/nextstrain/flu/h5n1/seg3/PAX.fasta b/data/nextstrain/flu/h5n1/seg3/PAX.fasta
deleted file mode 100644
index c81ad8ad..00000000
--- a/data/nextstrain/flu/h5n1/seg3/PAX.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MEDFVRQCFNPMIVELAEKAMKEYGEDPKIETNKFAAICTHLEVCFMYSDFHFIDERGESTIIESGDPNALLKHRFEIIEGRDRTMAWTVVNSICNTTGVEKPKFLPDLYDYKENRFIEIGVTRREVHTYYLEKANKIKSEKTHIHIFSFTGEEMATKADYTLDEESRARIKTRLFTIRQEMASRGLWDSFVSPREAKRQLKKDLKSQGLCAGLPTKVSHLISPALKNLEPMWMDSNRTAALRASFLKCRKK
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg4/HA.fasta b/data/nextstrain/flu/h5n1/seg4/HA.fasta
deleted file mode 100644
index edeb2bc7..00000000
--- a/data/nextstrain/flu/h5n1/seg4/HA.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MEKIVLLLAIVSLVKSDQICIGYHANNSTEQVDTIMEKNVTVTHAQDILEKTHNGKLCDLNGVKPLILRDCSVAGWLLGNPMCDEFINVPEWSYIVEKASPANDLCYPGDFNDYEELKHLLSRTNHFEKIQIIPKSSWSNHDASSGVSSACPYHGRSSFFRNVVWLIKKNSAYPTIKRSYNNTNQEDLLVLWGIHHPNDAAEQTKLYQNPTTYISVGTSTLNQRLVPEIATRPKVNGQSGRMEFFWTILKPNDAINFESNGNFIAPEYAYKIVKKGDSAIMKSELEYGNCNTKCQTPMGAINSSMPFHNIHPLTIGECPKYVKSNRLVLATGLRNTPQRERRRKKRGLFGAIAGFIEGGWQGMVDGWYGYHHSNEQGSGYAADKESTQKAIDGVTNKVNSIIDKMNTQFEAVGREFNNLERRIENLNKQMEDGFLDVWTYNAELLVLMENERTLDFHDSNVKNLYDKVRLQLRDNAKELGNGCFEFYHKCDNECMESVKNGTYDYPQYSEEARLNREEISGVKLESMGTYQILSIYSTVASSLALAIMVAGLSLWMCSNGSLQCRICI
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg5/NP.fasta b/data/nextstrain/flu/h5n1/seg5/NP.fasta
deleted file mode 100644
index 8a4e10af..00000000
--- a/data/nextstrain/flu/h5n1/seg5/NP.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MASQGTKRSYEQMETGGERQNATEIRASVGRMVGGIGRFYIQMCTELKLSDYEGRLIQNSITIERMVLSAFDERRNKYLEEHPSAGKDPKKTGGPIYRRRDGKWVRELILYDKEEIRRIWRQANNGEDATAGLTHMMIWHSNLNDATYQRTRALVRTGMDPRMCSLMQGSTLPRRSGAAGAAVKGVGTMVMELIRMIKRGINDRNFWRGENGRRTRIAYERMCNILKGKFQTAAQRAMMDQVRESRNPGNAEIEDLIFLARSALILRGSVAHKSCLPACVYGLAVASGYDFEREGYSLVGIDPFRLLQNSQVFSLIRPNENPAHKSQLVWMACHSAAFEDLRVSSFIRGTRVAPRGQLSTRGVQIASNENMETMDSSTLELRSRYWAIRTRSGGNTNQQRASAGQISVQPTFSVQRNLPFERATIMAAFTGNTEGRTSDMRTEIIRMMESSRPEDVSFQGRGVFELSDEKATNPIVPSFDMSNEGSYFFGDNAEEYDN
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg6/NA.fasta b/data/nextstrain/flu/h5n1/seg6/NA.fasta
deleted file mode 100644
index a1887702..00000000
--- a/data/nextstrain/flu/h5n1/seg6/NA.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MNPNQKIITIGSICMVVGIISLMLQIGNIISIWVSHSIQTGNQHQAEPCNQSIITYENNTWVNQTYVNISNTNFLTEKAVASVTLAGNSSLCPISGWAVHSKDNGIRIGSKGDVFVIREPFISCSHLECRTFFLTQGALLNDKHSNGTVKDRSPHRTLMSCPVGEAPSPYNSRFESVAWSASACHDGTSWLTIGISGPDNGAVAVLKYNGIITDTIKSWRNNILRTQESECACVNGSCFTVMTDGPSNGQASYKIFKMEKGKVVKSVELNAPNYHYEECSCYPDAGEITCVCRDNWHGSNRPWVSFNQNLEYQIGYICSGVFGDNPRPNDGTGSCGPVSPNGAYGVKGFSFKYGNGVWIGRTKSTNSRSGFEMIWDPNGWTGTDSSFSVKQDIVAITDWSGYSGSFVQHPELTGLDCIRPCFWVELIRGRPKESTIWTSGSSISFCGVNSDTVGWSWPDDAELPFTIDK
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg7/M1.fasta b/data/nextstrain/flu/h5n1/seg7/M1.fasta
deleted file mode 100644
index d4ad3764..00000000
--- a/data/nextstrain/flu/h5n1/seg7/M1.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MSLLTEVETYVLSIVPSGPLKAEIAQRLEDVFAGKNTDLEALMEWLKTRPILSPLTKGILGFVFTLTVPSERGLQRRRFVQNALNGNGDPNNMDRAVKLYKKLKREITFHGAKEVALSYSTGALASCMGLIYNRMGTVTTEVAFGLVCATCEQIADSQHRSHRQMATTTNPLIRHENRMVLASTTAKAMEQMAGSSEQAAEAMEVASQARQMVQAMRTIGTHPSSSAGLKDNLLENLQAYQKRMGVQMQRFK
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg7/M2.fasta b/data/nextstrain/flu/h5n1/seg7/M2.fasta
deleted file mode 100644
index d2ec2a62..00000000
--- a/data/nextstrain/flu/h5n1/seg7/M2.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MSLLTEVETPTKNEWECKCSDSSDPLVVAASIIGILHLILWILDRLFFKCIYRRLKYGLKRGPSTEGVPESMREEYRQEQQSAVDVDDGHFVNIELE
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg8/NS1.fasta b/data/nextstrain/flu/h5n1/seg8/NS1.fasta
deleted file mode 100644
index 294e3bc7..00000000
--- a/data/nextstrain/flu/h5n1/seg8/NS1.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MDSNTITSFQVDCYLWHIRKLLSMRDMCDAPFDDRLRRDQKALKGRGSTLGLDLRVATMEGKKIVEDILKSETNENLKIAIASSPAPRYITDMSIEEMSREWYMLMPRQKITGGLMVKMDQAIMDKRIILKANFSVLFDQLETLVSLRAFTESGAIVAEIFPIPSVPGHFTEDVKNAIGILIGGLEWNDNSIRASENIQRFAWGIHDENGGPSLPPKQKRYMAKRVESEV
\ No newline at end of file
diff --git a/data/nextstrain/flu/h5n1/seg8/NS2.fasta b/data/nextstrain/flu/h5n1/seg8/NS2.fasta
deleted file mode 100644
index bb972c6e..00000000
--- a/data/nextstrain/flu/h5n1/seg8/NS2.fasta
+++ /dev/null
@@ -1 +0,0 @@
-MDSNTITSFQDILQRMSKMQLESSSVDLNGMITQFERLKIYRDSLGESMMRMGDLHSLQNRNATWRNELSQKFEEIRWLIAECRNILTKTENSFEQITFLQALQLLLEVESEIRTFSFQLI
\ No newline at end of file