The cat is a savage fighter when cornered but does not normally attack humans.
The conditions are so alarming that even many expert skiers who normally attack backcountry terrain with ease are staying within the controlled areas of resorts.
When the body's immune system does not operate as it should, white blood cells that normally attack bacteria or viruses attack healthy tissue instead — in this case, the synovium, or joint tissue.
Then the bugs laid eggs that hatched, and the new beetles flew to other trees in early August, the time of year when the species would normally attack a tree.
This drug kills the donor's lymphocytes that would normally attack the recipient, but it spares the donor stem cells, which have an enzyme that makes them immune to it.
These may include investigating a new class of immune system stimulants called cyclic di-nucleotides, which have shown promise in shrinking tumors and bolstering vaccines against tuberculosis, and research that could help re-arm the immune system's natural killer cells, which normally attack cancer cells and virus-infected cells, to better fight tumors.
We try to convince our immune systems to attack cancer cells (our immune systems don't normally attack our own bodies), we try to convince neurons to regrow (another unnatural phenomenon), and we try to convince the body to accept foreign bits, such as someone else's kidney or a fake bone.
In infected humans, the organisms normally attack the small intestine after being ingested [2, 3].
Yes, states that would normally attack us are the same as the ones that might attack our networks.
Tumors can suppress the cytotoxic T cells that would normally attack them by activating two immune cell surface receptors, CTLA4 and PD-1.
This meant that a single Zeus site would normally attack two targets, although a third could be attacked if needed.
