- What is the period of time called when a disease is contagious and com-
municable before showing signs and symptoms and during recovery?
(a) Symptomatic
(b) Incubation period
(c) Asymptomatic
(d) Carrier period - Incubatory carriers are individuals who transmit the disease before becom-
ing symptomatic.
(a) True
(b) False - Convalescent carriers are individuals who develop chronic infections and
transmit the infection for long periods of time.
(a) True
(b) False
CHAPTER 13 Epidemiology and Disease^209