Santa Clara Public Health Department said Saturday a fourth case of the novel coronavirus has been confirmed in Santa Clara County.
According to officials, this case is in an adult woman who "is a household contact of the third Santa Clara County case."
Officials said the fourth case is not ill or hospitalized but is isolating at home.
The significance of the county's third case is that the woman had not traveled to any other country hit by the outbreak nor had she been in contact with anyone known to have the infection.
The county said in a press release that they have been preparing for "community transmission" since previous cases were confirmed.
"Since the disease is here, an important priority for the department will be to conduct community surveillance to determine the extent of local spread," officials said.
The latest case of coronavirus in the county was announced Friday. That person is currently hospitalized.
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