Table 4.
AIV subtype detection in sub-Saharan Africa according to the included studies.
| Study Region | Central Africa | East Africa | Southern Africa | West Africa |
|---|---|---|---|---|
| HA Subtypes Detected | H5 | H4, H5, H9 | H1, H3, H4, H5, H6, H7, H9, H10, H11 | H3, H5, H7, H9 |
| Most Prevalent HA Subtypes | H5 | H5 | H5 | H5 |
| HA Subtypes not Detected | H1–H4, H6–H16 | H1–H3, H6–H8, H10–H16 | H2, H8, H12–H16 | H1–H2, H4, H6, H8, H10–H16 |
| Prevalent NA Subtypes | N1, N8 | N2, N6, N8 | N1, N2, N6, N7, N8, N9 | N1, N2, N7, N8 |
| NA Subtypes not Detected | N2, N3, N4, N5, N6, N7, N9 | N1, N3, N4, N5, N7, N9 | N3, N4, N5 | N3, N4, N5, N6, N9 |
| Prevalent Subtype Combinations | H5N1, H5N8, H5Nx | H4N6, H5N8, H9N2, H5Nx | H1N2, H1N8, H3N6, H3N8, H4N2, H4N6, H4N8, H5N1, H5N2, H5N8, H6N2, H6N8, H9N2, H10N7, H10N9, H11N9, H5Nx, H6Nx, H7Nx | H3N8, H5N1, H5N2, H7N7, H9N2, H5Nx, H7Nx |
| Most Prevalent Subtype Combinations | H5N1 | H5N8 | H5N2, H5N8, H6N2 | H5N1, H9N2 |
Note: HA = hemagglutinin; NA = neuraminidase; Nx = unknown NA subtype.