Seventy μg of anti-dengue virus type II antibody, clone 3H5-1 (Millipore) was covalently coupled to 25 μL amine-active resin according to the Pierce Co-Immunoprecipitation Kit manual (ThermoFisher Scientific). One hundred μg purified, formaldehyde-inactivated dengue virus type 2 virions (Microbix) was then mixed with 100 Ae. aegypti salivary gland equivalents and added to the antibody-containing resin with gentle end-over-end mixing for 2 hr at 4°C. Unbound proteins were washed away and bound proteins were eluted in a final volume of 50 μL. The experimental details are described in the Pierce Co-Immunoprecipitation Kit manual. Eluted proteins were identified by LC+MS/MS analysis as stated above.