diff --git a/lineage_notes.txt b/lineage_notes.txt
index 6ff7a9cd..176493d2 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -1330,6 +1330,7 @@ JN.1.41	Alias of B.1.1.529.2.86.1.1.41, S:S1252F, on A29086T, USA, from sars-cov
 JN.1.42	Alias of B.1.1.529.2.86.1.1.42, C5581A, South America
 JN.1.42.1	Alias of B.1.1.529.2.86.1.1.42.1, S:F59S, from sars-cov-2-variants/lineage-proposals#1474
 JN.1.42.2	Alias of B.1.1.529.2.86.1.1.42.2, S:R346T, Peru from #2494
+MS.1	Alias of B.1.1.529.2.86.1.1.42.2.1, S:31del, ORF1a:E940G, USA/Guatemala
 JN.1.43	Alias of B.1.1.529.2.86.1.1.43, A25237G
 JN.1.43.1	Alias of B.1.1.529.2.86.1.1.43.1, C19488T, C29218T, Brazil
 JN.1.44	Alias of B.1.1.529.2.86.1.1.44, ORF6:P57L, from sars-cov-2-variants/lineage-proposals#987
diff --git a/lineages.csv b/lineages.csv
index 08446a6e..12450b8b 100644
--- a/lineages.csv
+++ b/lineages.csv
@@ -2565000,3 +2565000,74 @@ France/BFC-RELAB-IPP08703/2024,XEC.1
 France/BFC-RELAB-IPP08704/2024,XEC.1
 Canada/AB-ABPHL-120998/2024,XEC.1
 France/GES-IPP08405/2024,XEC.1
+USA/TX-HMH-M-141690/2024,MS.1
+USA/CA-LACPHL-AY06952/2024,MS.1
+USA/CA-LACPHL-AY06948/2024,MS.1
+USA/CA-SEARCH-140589/2024,MS.1
+USA/CA-CDC-QDX20255944/2024,MS.1
+Guatemala/0592-DLNS/2024,MS.1
+USA/NY-CDC-LC1106899/2024,MS.1
+USA/2473844/2024,MS.1
+USA/NY-CDC-LC1110916/2024,MS.1
+USA/CA-CDPH-6000019948/2024,MS.1
+USA/CA-GBW-GKISBBBC84609/2024,MS.1
+USA/TX-HMH-M-141880/2024,MS.1
+USA/VA-GBW-GKPLAAAA21358/2024,MS.1
+USA/CA-LACPHL-AY07418/2024,MS.1
+USA/VA-GBW-GKPLAAAA17017/2024,MS.1
+USA/VA-GBW-GKISBBBB49450/2024,MS.1
+USA/NJ-GBW-GKISBBBC94321/2024,MS.1
+Guatemala/0590-DLNS/2024,MS.1
+USA/CA-CDPH-6000019766/2024,MS.1
+USA/UT-UPHL-240802260118/2024,MS.1
+USA/UT-UPHL-240802805510/2024,MS.1
+USA/UT-UPHL-240802319433/2024,MS.1
+USA/CA-GBW-GKISBBBB76347/2024,MS.1
+USA/CA-GBW-GKPLAAAA14964/2024,MS.1
+USA/VA-GBW-GKISBBBC99344/2024,MS.1
+USA/VA-GBW-GKPLAAAA33680/2024,MS.1
+USA/WA-PHL-035352/2024,MS.1
+USA/WA-PHL-035354/2024,MS.1
+USA/WA-PHL-035327/2024,MS.1
+USA/WA-PHL-035356/2024,MS.1
+USA/WA-PHL-035355/2024,MS.1
+USA/VA-GBW-GKISBBBB45250/2024,MS.1
+USA/VA-GBW-GKISBBBC94051/2024,MS.1
+USA/VA-GBW-GKISBBBB45205/2024,MS.1
+USA/VA-GBW-GKPLAAAA16746/2024,MS.1
+USA/CA-CDPH-500137043/2024,MS.1
+USA/NJ-CDC-LC1104636/2024,MS.1
+USA/CA-CDPH-500136916/2024,MS.1
+USA/FL-CDC-QDX98785781/2024,MS.1
+USA/CA-GBW-GKISBBBB73210/2024,MS.1
+Canada/ON-PHL-202410889/2024,MS.1
+USA/CA-GBW-GKISBBBB37326/2024,MS.1
+USA/VA-GBW-GKISBBBC94461/2024,MS.1
+USA/NJ-GBW-GKISBBBC93884/2024,MS.1
+USA/NJ-GBW-GKPLAAAA35259/2024,MS.1
+USA/MN-MDH-41793/2024,MS.1
+USA/NY-CDC-QDX98844320/2024,MS.1
+USA/NJ-GBW-GKPLAAAA38935/2024,MS.1
+USA/CA-GBW-GKPLAAAA16519/2024,MS.1
+USA/CA-GBW-GKISBBBC01489/2024,MS.1
+Guatemala/0811-DLNS/2024,MS.1
+USA/CA-CDPH-500137053/2024,MS.1
+Mexico/CMX-INER-INMEGEN-3091/2024,MS.1
+USA/TX-HMH-M-142342/2024,MS.1
+USA/CA-GBW-GKISBBBC86435/2024,MS.1
+USA/FL-GBW-GKISBBBB97876/2024,MS.1
+USA/FL-CDC-LC1106631/2024,MS.1
+USA/CA-CDPH-500137438/2024,MS.1
+USA/CA-CDPH-500137924/2024,MS.1
+USA/CA-CDPH-6000019373/2024,MS.1
+USA/OH-PLMI-5H5-25146/2024,MS.1
+USA/IL-CDC-QDX97356919/2024,MS.1
+USA/TX-HMH-M-141194/2024,MS.1
+USA/FL-GBW-GKISBBBE00952/2024,MS.1
+USA/VA-CDC-LC1108764/2024,MS.1
+USA/MD-CDC-QDX98726365/2024,MS.1
+USA/CA-GBW-GKISBBBB38444/2024,MS.1
+USA/FL-CDC-LC1110350/2024,MS.1
+USA/FL-CDC-QDX20188693/2024,MS.1
+USA/VA-GBW-GKPLAAAA21291/2024,MS.1
+USA/VA-GBW-GKISBBBE02045/2024,MS.1
diff --git a/pango_designation/alias_key.json b/pango_designation/alias_key.json
index aab5114d..7730a0cf 100644
--- a/pango_designation/alias_key.json
+++ b/pango_designation/alias_key.json
@@ -285,6 +285,7 @@
     "MP": "B.1.1.529.2.86.7",
     "MQ": "B.1.1.529.2.86.1.1.7.8",
     "MR": "B.1.1.529.2.86.1.1.11.1.3.3.4",
+    "MS": "B.1.1.529.2.86.1.1.42.2",
     "XA": ["B.1.1.7","B.1.177"],
     "XB": ["B.1.634","B.1.631"],
     "XC": ["AY.29","B.1.1.7"],