Propagation of parasite in toxoplasmosis host cell stopped

Toxoplasmosis is one of the most widespread zoonoses worldwide. It is an infectious disease that can be transmitted from cats to humans. People can also become infected by consuming raw or undercooked meat. Infection is particularly ...

Blocking spike captors to counter COVID

Despite the effectiveness of vaccination campaigns worldwide, the threat posed by COVID-19 still exists. First of all, a new SARS-CoV-2 variant could very well emerge that may not respond to current vaccines. Secondly, the ...

The fungal effector Rip 1 suppresses maize host defense responses

Plant colonization by biotrophic pathogens requires sophisticated strategies for tissue invasion, defense suppression and metabolic manipulation to loot nutrients necessary for their growth and reproduction. The biotrophic ...

Bacteria make a beeline to escape tight spaces

A newly published study by researchers at the University of Hawai'i at Mānoa revealed that bacteria alter their swimming patterns when they get into tight spaces—making a beeline to escape from confinement.

Two DNA defense systems behind resilience of 7th cholera pandemic

Cholera is caused by the bacterium Vibrio cholerae, a waterborne pathogen that infects the gut of humans through contaminated water and food. When ingested, V. cholerae colonizes the gut's inner surface, causing a watery ...

Targeted enzymes destroy virus RNA

A research team led by the Technical University of Munich (TUM) has successfully used specific enzymes to destroy the genetic information of SARS-CoV-2 directly after the virus penetrates the cell. The findings could serve ...

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Host (biology)

In biology, a host is an organism that harbors a virus or parasite, or a mutual or commensal symbiont, typically providing nourishment and shelter. In botany, a host plant is one that supplies food resources and substrate for certain insects or other fauna. Examples of such interactions include a cell being host to a virus, a legume plant hosting helpful nitrogen-fixing bacteria, and animals as hosts to parasitic worms, e.g. nematodes.

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