The phrase "are infective" is correct and usable in written English.
It can be used in contexts related to biology or medicine, particularly when discussing organisms or agents that can cause infection.
Example: "The bacteria in the sample are infective and pose a risk to human health."
Alternatives: "are infectious" or "can cause infection".
Humans infected with malaria are infective to mosquitoes if they have gametocytes in their blood.
Rock hyraxes are susceptible to L. tropica, and infected rock hyraxes are infective to feeding P. arabicus and P. sergenti.
Bacteria located in SGs of nymphs and adults are infective because injection of 1 pair of infected SGs into cats induced high levels of bacteremia.
To avoid adding an extra compartment to account for the (short) period of infectivity after the end of the latent period and before the end of incubation period (see e.g., [ 20]), we assume that the individuals are infective during the incubation period with the infectivity averaged out over the whole incubation period.
Patients from Nioki town can acquire their infection either in Nioki itself, where there are infective tsetse flies, or when traveling in rural parts of the district.
The most commonly encountered facial masses in the paediatric population are infective in nature, typically due to lymphadenitis, sinusitis, or a dental infection [1, 2].
Other sources of infection (each n = 1) were infective endocarditis, liver abscess and pneumonia, retropharyngeal abscess, and meningitis.
84.6% of the crater lakes studied were infective with over 50% of the users infected.
61.5% of the crater lakes studied (Table 2) were infective with over 50% of the users infected.
'Anthrax Seasons' are characterized by hot-dry weather which stresses animals and reduces their innate resistance to infection allowing low doses of spores to be infective.
It is the predominant strain infecting humans, but the other genotypes are also known to be infective.
