Sentence examples for infectivity index from inspiring English sources

Twenty hours after infection, infectivity index was calculated (Additional File 1A) revealing a good correlation in cell-specific infectivity driven by the three viruses (R2 = 0.84 and R2 = 0.87, comparing GLV-1h68 to VACV-WR or VSV respectively) suggesting that a common cancer cell phenotype may influence the replication of these viruses.

The infectivity index (percentage of infected macrophages×average number of amastigotes per macrophage) was calculated by randomly counting at least 200 macrophages per slide.

However, an initial difference detected 24 h post-infection (1.2-fold higher infectivity index and 2-fold higher virulence index) became more statistically significant 48 h post-infection with an approximately 2-fold higher infectivity index and ∼5-fold higher virulence index.

GFP protein expression data were ranked among the 74 cell lines according to infectivity index.

An almost perfect correlation (R2 = 0.96) between the infectivity index obtained in the two conditions was observed with the higher MOI consistently yielding a 2-fold higher intensity.

Therefore for each cell line we calculated the infectivity index as the product the two parameters (MFI of GFP and the percentage of fluorescent cells).

We infected macrophages in vitro with a fixed parasite/macrophage ratio for all strains and evaluated the infection index at 24 and 96 hours post infection to assess their infectivity and infection profile in macrophages.

However, tuberculosis transmission is complex and several factors other than exposure time influence the risk of being infected, in particular infectivity of the index case, various characteristics of the exposed children such as low age and vulnerability, and how close the exposure has been in terms of physical contact, room size and air quality.

However, we did have data on three proxies related to prior exposure to Mtb (age) or recent exposure to Mtb (proximity to and infectivity of the index case).

There was no effect of BCG vaccination or factors reflecting infectivity of the index case on the time to TB episode in household contacts.

Interestingly, the L. donovani r LdMAcP mRFP1 promastigotes generated in this study, showed significantly higher infectivity and virulence indexes than control parasites in the infection of J774 mouse macrophages highlighting thereby a role for LdMAcP in the parasite's virulence.