secondary

(redirected from secondary attack rate)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to secondary attack rate: case fatality rate

secondary

(sĕk′ən-dĕr′ē)
adj.
1. Second or lower in rank or importance; not primary: concerns that are secondary.
2. Of, relating to, or being the shorter flight feathers projecting along the inner edge of a bird's wing.
3. Being a degree of health care intermediate between primary care and tertiary care, as that typically offered at a community hospital.
n. pl. secondar·ies
1. One that acts in an auxiliary, subordinate, or inferior capacity.
2. One of the shorter flight feathers projecting along the inner edge of a bird's wing.

sec′ond·ar′i·ly (-dâr′ə-lē) adv.
sec′ond·ar′i·ness n.

secondary

adjective
(1) Not primary; generally referring to that which follows another linked process.
(2) Metastatic, see there.
 
noun A metastatic focus of tumour.

secondary

adjective 
1. Not primary; generally that which follows another linked process.
2. Metastatic, see there.

sec·on·dar·y

(sek'ŏn-dar-ē)
1. Second in order.
2. Caused by another condition (e.g., a secondary infection caused by antibiotic treatment for a primary infection).

secondary

A disease or disorder that results from and follows another disease or a prior episode of the same disease. Secondary cancer is the occurrence of a METASTASIS at a site remote from that of the primary tumour. Since the tumour originated in a different tissue it may differ in character from a primary growth at the new site.

sec·on·dary

(sek'ŏn-dar-ē)
1. Second in order.
2. Caused by another condition (e.g., a secondary infection caused by antibiotic treatment for a primary infection).
References in periodicals archive ?
Somewhat higher secondary attack rates occurred among contacts who were family or household members of their source case-patient and among contacts of probable case-patients.
One small, retrospective study reported a 30% secondary attack rate for laboratory-confirmed 2009 pandemic influenza A (H1N1) virus infection among tourists in China.
Secondary attack rates for susceptible household contacts of index case-patients with pandemic (H1N1) 2009, Victoria, Australia, May 18-June 3, 2009 * Total no.
Because early case finding was most intensive among high school children associated with school outbreaks, our cohort may have been biased in favor of households where the index case-patients were children; however, this would not explain a lower secondary attack rate among adult household contacts.
In our model, we have shown that cost-effectiveness ratio is dependent on the interplay between exposure rate, transmissibility (secondary attack rate), case-fatality rate, and risk of transmission from atypical cases.
Secondary attack rate for influenza A pandemic (H1N1) 2009, by travel history, Sichuan Province, China, June 2009 Group Total no.
Secondary attack rates in the literature are reported from outbreaks and regions with vulnerable populations during periods of high incidence and may not apply in affluent countries with high coverage and may be <5%.
Among 3,916 contacts of the 1,099 primary case-patients, the crude secondary attack rate was 8.8% (95% confidence interval [CI] 7.9-9.7).
The secondary attack rate in unvaccinated household members was 9.3%, and 28% of case-patients reported an exposure to another case-patient during the incubation period.
Over the 4-year study period, the secondary attack rate for colds in the intervention group was 7%, versus 20% in the control group.
Measles is highly communicable,with greater than 90% secondary attack rates among susceptible persons, he added.
(4) Studies have shown secondary attack rates of 19% to 45% among patients when limited or no infection control measures were utilized.