Thus Ehrlich could conclude: We can presently distinguish two types of immunity, the first of which may be termed active and the second passive … It is not to be doubted that that the immunity ...

This handout is also available for download in PDF format. We refer to a sentence as being in the "active voice" when the subject is performing the action of the sentence (the verb). A sentence is in ...

provide artificial active immunity. Breastfeeding provides a baby with natural passive immunity. Anti-venom provides artificial passive immunity after a poisonous bite.

Active euthanasia occurs when the medical professionals, or another person, deliberately do something that causes the patient to die. Passive euthanasia occurs when the patient dies because the ...

Adaptive immunity is the protection of a host organism from a pathogen or toxin. It is mediated by B cells and T cells, and is characterized by immunological memory. Adaptive immunity is highly ...

Writing in the active voice makes the meaning clear while keeping sentences from becoming complicated and wordy. Sentences using passive voice are not necessarily wrong, just less effective than ...

Vanguard founder Jack Bogle started the debate of active versus passive investing when he created the first index fund in 1975. Hundreds of additional index funds, countless studies, and one ...

Coronavirus is a completely new infection in people. Nobody had immunity at the start of the pandemic - and knowing more about immunity is crucial for understanding what happens next. How do you ...

Brain, Behavior, and Immunity, founded in 1987, is the official journal of the Psychoneuroimmunology Research Society (PNIRS). This innovative journal publishes peer-reviewed basic, experimental ...

In addition to work on HIV and Ebola, we have made significant impacts on COVID-19 research by integrating experts from immunity and infection, thrombosis, genomics, cardiovascular disease, pulmonary, ...

It’s difficult to choose between active vs. passive investing approaches. Though equity and fixed-income funds saw an increase in success rates from December 2023 through June 2024 in their ...

When it comes to investing in mutual funds, an investor has to decide whether to choose active or passive funds. Both types of funds offer different approaches to managing investments, and having ...