Virusys Corporation于1997年在马里兰州托尼敦（美国）成立。提供超过70种优质一抗。三分之一的Virusys一抗已成功登上发表刊物。该生产商的所有一抗均为小鼠来源的单克隆抗体，从而确保其在抗原检测过程中具有极高的特异性。产品系列还包括病毒学家非常感兴趣的一抗。可以检测巨细胞病毒、EB病毒、单纯疱疹病毒或带状疱疹病毒的抗原。对于每种病毒，用户可以选择针对该病毒的抗不同抗原（例如，抗基质蛋白、DNA结合蛋白或膜蛋白）的一抗。Virusys的所有一抗可用于免疫荧光检测，同时也有许多适合Western Blot或ELISA检测的抗体。这些抗体为未偶合抗体，从而用户得以自由选择使用何种检测系统。
流感病毒可分为三类，A，B，和C，很大程度上是基于保守的内部核蛋白的抗原性差异。甲型流感病毒，通常会遇到比类型B和C更频繁和严重的流行病，大多数有关，可以进一步细分为基于外部的血凝素蛋白的抗原性差异的菌株或亚型（h1-h18）和神经氨酸酶蛋白（n1-n11）。
从历史上看，人类流感病毒感染了甲型H1N1流感，N2n2有关，和甲型H3N2亚型，虽然在香港1997次被确定为H5N1亚型。这次爆发不仅是因为它导致了多人感染和死亡，而且也是第一次已知禽流感病毒向人类传播的示范。
Virusys Corporation部分产品信息如下：
E60-0001 SLR66-00005
Equine IgG solution >= 97% purity, 1gm Rabbit IgG, 500mg
E60-0010 SLR66-0001
Equine IgG solution >= 97% purity, 10gm Rabbit IgG, 1gm
E60-0100 SLR66-0100
Equine IgG solution >= 97% purity, 100gm Rabbit IgG, 100gm
E60-1000 B60-0001
Equine IgG solution >= 97% purity, 1KG Bovine IgG solution >= 97% purity, 1gm
B60-0010 SLD66-0100
Bovine IgG solution >= 97% purity, 10gm Donkey IgG, 100gm
B60-0100 SLD66-00005
Bovine IgG solution >= 97% purity, 100gm Donkey IgG, 500mg
B60-1000 SLD66-0001
Bovine IgG solution >= 97% purity, 1KG Donkey IgG, 1gm
CA60-0100 CA60-0500
Canine IgG solution >= 97% purity, 100mg Canine IgG solution >= 97% purity, 500mg
CA60-1000 C60-0001
Canine IgG solution >= 97% purity, 1gm Chicken IgY solution >= 97% purity, 1gm
C60-0010 C60-0100
Chicken IgY solution >= 97% purity, 10gm Chicken IgY solution >= 97% purity, 100gm
R60-0010 R60-0001
Rabbit IgG solution >= 97% purity, 10gm Rabbit IgG solution >= 97% purity, 1gm部分产品信息如下：
E60-0001 SLR66-00005
Equine IgG solution >= 97% purity, 1gm Rabbit IgG, 500mg
E60-0010 SLR66-0001
Equine IgG solution >= 97% purity, 10gm Rabbit IgG, 1gm
E60-0100 SLR66-0100
Equine IgG solution >= 97% purity, 100gm Rabbit IgG, 100gm
E60-1000 B60-0001
Equine IgG solution >= 97% purity, 1KG Bovine IgG solution >= 97% purity, 1gm
B60-0010 SLD66-0100
Bovine IgG solution >= 97% purity, 10gm Donkey IgG, 100gm
B60-0100 SLD66-00005
Bovine IgG solution >= 97% purity, 100gm Donkey IgG, 500mg
B60-1000 SLD66-0001
Bovine IgG solution >= 97% purity, 1KG Donkey IgG, 1gm
CA60-0100 CA60-0500
Canine IgG solution >= 97% purity, 100mg Canine IgG solution >= 97% purity, 500mg
CA60-1000 C60-0001
Canine IgG solution >= 97% purity, 1gm Chicken IgY solution >= 97% purity, 1gm
C60-0010 C60-0100
Chicken IgY solution >= 97% purity, 10gm Chicken IgY solution >= 97% purity, 100gm
R60-0010 R60-0001
Rabbit IgG solution >= 97% purity, 10gm Rabbit IgG solution >= 97% purity, 1gm部分产品信息如下：
E60-0001 SLR66-00005
Equine IgG solution >= 97% purity, 1gm Rabbit IgG, 500mg
E60-0010 SLR66-0001
Equine IgG solution >= 97% purity, 10gm Rabbit IgG, 1gm
E60-0100 SLR66-0100
Equine IgG solution >= 97% purity, 100gm Rabbit IgG, 100gm
E60-1000 B60-0001
Equine IgG solution >= 97% purity, 1KG Bovine IgG solution >= 97% purity, 1gm
B60-0010 SLD66-0100
Bovine IgG solution >= 97% purity, 10gm Donkey IgG, 100gm
B60-0100 SLD66-00005
Bovine IgG solution >= 97% purity, 100gm Donkey IgG, 500mg
B60-1000 SLD66-0001
Bovine IgG solution >= 97% purity, 1KG Donkey IgG, 1gm
CA60-0100 CA60-0500
Canine IgG solution >= 97% purity, 100mg Canine IgG solution >= 97% purity, 500mg
CA60-1000 C60-0001
Canine IgG solution >= 97% purity, 1gm Chicken IgY solution >= 97% purity, 1gm
C60-0010 C60-0100
Chicken IgY solution >= 97% purity, 10gm Chicken IgY solution >= 97% purity, 100gm
R60-0010 R60-0001
Rabbit IgG solution >= 97% purity, 10gm Rabbit IgG solution >= 97% purity, 1gm