Furthermore GM-CSF-encoding virus shifted virus specific Th2 response to Th1 type.
Nabel used this knowledge to identify parts that stay the same while the rest of the virus shifts and mutates.
As a person ages, the immune response to antigenic stimulation with the influenza virus shifts toward T helper type 2 cytokine production.
A significant, upward-sloping linear regression was observed between time and the ratio of the TEV -ΔNIb TEV (fig. 1; r2 = 0.632, F1,14 = 22.330, P < 0.001), meaning that the ratio of the viruses shifts significantly toward TEV-Δ NIb, and this virus therefore has a significantly higher competitive fitness.
We have shown that the inclusion of PtdSer-containing membranes, from either apoptotic cells or enveloped viruses, shifts the ligand dose-response activation profiles for both Axl and Mer to lower ligand concentrations (Bhattacharyya et al. Cell Host & Microbe 14: 136-47 (2013); Zagórska et al., Nature Immunology, in press (October 2014), discussed in the Results section).
Acute infection and associated take-over of the metabolism by a virus may shift the requirements for certain nutrients.
Influenza pandemics occur less frequently, as a result of major changes in the surface glycoproteins of the virus (antigenic shift).
A18 Funds for Virus Study Shifted The Centers for Disease Control acknowledged that several million dollars designated by Congress to be spent for research on the deadly hantavirus was actually spent on other work, and the General Accounting Office was told to investigate.
At the same time, the biggest effort ever on the American side of the border to find the virus is shifting into high gear, with fish samples arriving in labs in Idaho, Alaska and here in Washington State.
Military infectious diseases expert Jiang Suchun tells Beijing Morning Post that the bird flu virus has shifted north instead of south because of cooler weather and says the virus is unlikely to survive in the warmer temperatures of the south or expand into an epidemic.
Then, as when subsequent virus antigenic shifts have occurred, all age groups were affected.
