Skip to main content

Table 2 The proportion of An. albimanus and An. pseudopunctipennis mosquitoes (from various geographical sites) infected with oocysts and the corresponding oocyst density produced by different P. vivax genotypes (cspVk /Pvs25-130) from southern Mexico

From: Plasmodium vivax CSP-Pvs25 variants from southern Mexico produce distinct patterns of infectivity for Anopheles albimanus versus An. pseudopunctipennis, in each case independent of geographical origin

Geographical site and mosquito colony Vk210/Pvs25-A Vk210/Pvs25-B Vk247/Pvs25-B
n Prop. infected Median number of oocysts (IQR) n Prop. infected Median number of oocysts (IQR) n Prop. infected Median number of oocysts (IQR)
An. albimanus
1. A/WS-R 210 0.72 14 (6.0–28.0) 280 0.10 7 (4.0–17.0) 1133 0.17 4 (1.0–15.0)
1. Coast, Chiapas 65 0.0 0.001 15.0 (15.0–15.0) 70 0.11 0.285 4 (2.5–5.0)
2. LF, Chiapas 10 0.40 0.067 5 (2.5–10.0) 45 0.07 0.519 2.0 (2.0–17.0) 205 0.03 <0.001 9 (3.0–10.0)
3. Oaxaca 10 0.80 0.690 18.5 (7.0–25.0) 56 0.04 0.260 7.0 (6.0–8.0) 119 0.01 0.001 66 (66.0–66.0)
4. Veracruz 10 0.40 0.067 11 (4.0–23.5) 20 0.0 35 0.06 0.233 3.5 (1.0–6.0)
An. pseudopunctipennis
1. P/TAP-R 113 0.03 2 (1.0–3.0) 147 0.60 17 (7.0–39.0) 415 0.80 41 (17.0–72.0)
3. Oaxaca 28 0.07 0.398 12.5 (9.0–16.0) 87 0.55 0.552 16.5 (7.0–39.5) 80 0.79 0.765 33 (21.0–57.0)
5. Nuevo Leon 75 0.03 0.997 1 (1.0–1.0) 59 0.53 0.391 19 (8.0–41.0) 275 0.81 0.876 39 (18.0–63.0)
6. Guatemala 68 0.09 0.135 1.5 (1.0–3.0) 100 0.56 0.622 20.5 (8.5–36.5) 207 0.71 0.015 27 (10.5–53.0)a
  1. Notes: Only infected mosquitoes were considered for the calculation of the median number of oocysts and its IQR. P-values from the comparison of the proportion of infected mosquitoes of a colony against the reference strain are indicated as superscripts (underlined are those having significance)
  2. aCompared to the reference mosquitoes, the number of oocysts was significantly lower in the Guatemala colony (P = 0.002) when fed with parasite genotype Vk247/Pvs25-B. Statistical significance was calculated by using the Jackknife coefficient variance estimator at 95% confidence interval (according to models described in method section)
  3. Abbreviations: n total number of mosquitoes examined, Prop. proportion, A/WS-R reference strain of An. albimanus, P/TAP-R reference strain of An. pseudopunctipennis, LF Lacandon Forest, IQR interquartile range