Table 1.

Association between histo-blood group antigens and susceptibility to rotavirus stratified by P genotype. Included are studies that reported P genotypes with at least 5 samples.

P-Genotype	Country	Lewis	ABO	Secretor	Reference
P[4]
	Nicaragua	Only Lewis b infected	Not investigated	Only secretors infected	[12]
	China	Lewis a less infected	No association	Secretors more infected	[13]
	China	No association	No association	Only secretors/partial secretors infected	[14]
	Malawi	Lewis negative less susceptible	No association	Secretors more infected	[15]
	Bangladesh	Only Lewis b infected	Not investigated	Only secretors infected	[16]
	Vietnam	Lewis b present in all infected	No association	Only secretors/partial secretors infected	[17]
	USA	Not investigated	Not investigated	Only secretors infected	[18]
P[6]
	Burkina Faso	Lewis negative more susceptible	No association	No association	[12]
	Malawi	Lewis negative more susceptible	No association	No association	[15]
	Bangladesh	Lewis negative more susceptible	Not investigated	No association	[16]
	Vietnam	Lewis negative more susceptible a	No association	Not investigated	[17]
P[8]
	Burkina Faso	Only Lewis b infected	No association	Only secretors infected	[12]
	Nicaragua	Only Lewis b infected	Not investigated	Only secretors infected	[12]
	China	Lewis a less infected	No association	Secretors more infected	[13]
	China	Lewis a less infected	No association	Secretors more infected	[14]
	Spain	Lewis b more infected	Blood group A and AB more infected compared to O	Secretors more infected	[19]
	Malawi	Lewis negative less susceptible	No association	Secretors more infected	[15]
	Bangladesh	Lewis negative less susceptible	Not investigated	No association	[16]
	Vietnam	No Lewis a infected	No association	Only secretors/partial secretors infected	[17]
	France	Not investigated	Not investigated	Only secretors infected	[20]
	USA	Not investigated	Not investigated	Apart from 1, only secretors infected	[18]
	Tunisia	Only Lewis positives infected	No association	No association	[21]

^a based on low OD values for Lewis a and Lewis b.