Varicella is caused by the varicella-zoster virus (VZV), which also causes shingles (herpes zoster). The virus typically affects children aged 2‒8 years.
The transmission of Clostridioides difficile can be patient-to-patient, via contaminated hands of healthcare workers or by environmental contamination.
Varicella (chickenpox) is caused by the varicella-zoster virus (VZV), which also causes shingles. The virus spreads through the body into the skin causing rashes to appear.
Pertussis, also known as whooping cough, is a highly contagious acute respiratory infection, caused by the bacterium Bordetella pertussis. The disease is characterised by a severe cough, which can last two months or even longer.