Vial and packaging for the 1957 H2N2 vaccine, at the National Museum of American History. Producing the inoculation required hundreds of thousands of fertilized chicken eggs per day. National ...

The hypothesis is that the immunity is due to childhood imprinting with other group 1 viruses (H1N1 and H2N2). However, the underlying immunological mechanism is poorly understood. Now ...

They found that blood samples from older adults born prior to 1968 who were likely first exposed to H1N1 or H2N2 in childhood had higher levels of antibodies that could bind to the stalk of the ...

Different combinations of these give rise to the influenza A virus subtypes, including the H1N1, H2N2 and H3N2 subtypes that have afflicted humankind for over 100 years. The influenza vaccine was ...

and A(H2N2) clade 1 viruses. 1968-1977 (group 2 [G2]; n = 49; mean age, 48.4 years); likely primed by A(H3N2) subtype clade 2 virus. 1978-1997 (group 3 [G3]; n = 40; mean age, 35.1 years), likely ...

Decades ago, another strain of H2N2 was responsible for the “Asian flu” pandemic, which broke out in 1957 in southern China and quickly spread around the world, claiming more than 1 million ...

This could be because older people have had more exposure to flu strains that are closely related to H5N1, called H1N1 and H2N2.… Receive a weekly dose of discovery in your inbox! We'll also ...

Heated diodes detect leaks of HFC, CFC, HCFC, HFO, H2N2 (Tracer Gas), and other refrigerant blends. The Fieldpiece DR58 Heated Diode Leak Detector performs particularly well with R410A and sniffs ...

"Human influenza A viruses of subtype H2N2 and related H2N2 avian influenza viruses can enter cells through a second receptor. They use an alternative entry pathway," says Stertz. The researchers ...

In lab tests, the antibodies inhibited the propagation of viruses from subtype H2N2, the subtype that caused pandemic influenza in 1957-58, and H3N2 viruses from humans, swine, and birds.