He said if people are still choosing to not be immunized and they are exposed to the measles they are becoming asked to isolate themselves until it is clear they aren’t infected. The incubation period for measles is approximately two weeks from contact with fever. People are contagious from four times before obtaining the rash to four days before breaking out in a measles rash.. 21 measles cases linked to megachurch in Texas DALLAS A Texas megachurch linked to in least 21 measles instances has been trying to contain the outbreak by hosting vaccination clinics, officials said Monday.Secondary Analyses In individuals with angiographic cardiovascular system disease, we evaluated the association of plasma APOC3 levels with total and cardiovascular mortality. We also tested the association of APOC3 mutations with the current presence of hepatic excess fat on computed tomography . Details of the methods are provided in the Supplementary Appendix. In the analyses of associations with cardiovascular system disease, we tested four variants and therefore considered a P worth of significantly less than 0.0125 to be significant.